Alternatives to PostyMan
Compare PostyMan alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to PostyMan in 2026. Compare features, ratings, user reviews, pricing, and more from PostyMan competitors and alternatives in order to make an informed decision for your business.
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1
SMTP.com
Ziff Davis
Reliable SMTP relay and email delivery services. Powerful email delivery services that enable you to send and track high volume emails effortlessly. Integrate and start sending in minutes. All your transactional, email relay and email delivery needs under one roof. Whether you need a low-latency email delivery provider for your transactional emails, scalable infrastructure for high-volume sends or reliable backend solution for your marketing campaigns, SMTP is built to deliver. Reputation Defender is SMTP’s proprietary technology that uses big data to proactively monitor your email list health and safeguard your domain and IP reputation among ISPs by suppressing bad emails in your sends from hard and soft bounces. This ensures your delivery rates and inbox placement incrementally gets better over time.Starting Price: $25 per month -
2
Bulk Response
Bulk Response
BulkResponse is the only Bulk Email Program along with Mass Email Marketing services that allow it's users to import unlimited contacts. Established Since 2009, BulkResponse has helped thousands of customers till date achieved their Email Marketing goals. If you want to send transactional emails and email marketing campaigns, then bulk response is all you need. You come across a lot of options when it comes to SMTP Relay Service Providers, but BulkResponse is the cheapest in price yet equally good in service quality. With BulkResponse, you can send marketing and transactional emails to millions of people in your mailing list while bypassing your own email server. With BulkResponse SMTP Relay Service, you can have Real-Time Email Tracking, Advanced Analytics for your email campaigns, Detailed Logs to Diagnose Email Delivery Failures, Increased Deliverability Features that help in reducing bounce rates and spam complaints as well as Email Address Validation Service.Starting Price: $35 per month -
3
Mails.ai
Mails.ai
Our Magic AI email writer will automatically write and setup your email campaigns for you. Just provide a few details and our AI will do the rest. Connect unlimited email accounts. We don't charge per inbox, so you can connect as many email accounts as you want. Upload all your contacts, use our AI to setup your campaigns, and setup daily limits and done. Now watch all the responses flow to your inbox as mails are sent everyday on your behalf. Safely send thousands of emails daily while maintaining your sender reputation. Just simply connect your sender accounts and let our AI automatically optimize email-sending patterns.Starting Price: $24 per month -
4
Mass Mail Servers
massmailservers
Create, Send and Track. Now you can send promotional emails with our cheap email marketing service plans. Send high volume bulk emails with dedicated mail servers and dedicated ips using your own domain. Send Transactional Emails with your own domain name and dedicated IP. We have best email marketing service plans for every industry. Worldwide more of the DATA Centers and Hosting providers do not allow bulk email delivery from their network. As soon as you will do they will detect you and will close your account or servers whereas we have designed our Data Centers and Network only for bulk mailing so that our customers can send millions of emails daily with mass mailing IPs. Reliable hosting for email and web applications requires finding the best partners and people who share your company’s vision. At MMS, we are committed to providing high-quality email and communication services.Starting Price: $9.99 per month -
5
Primeforge
Primeforge
Primeforge is a cold email infrastructure platform built to provision fully compliant Google Workspace and Microsoft 365 mailboxes, specifically optimized for high-deliverability outbound outreach. It automates the complex technical setup required for cold email, including SPF, DKIM, and DMARC configuration, domain authentication, and DNS management, allowing teams to deploy ready-to-send mailboxes in about 30 minutes without manual IT work. It uses trusted email service providers and US-based IP infrastructure to improve inbox placement and reduce the risk of messages landing in spam folders. Primeforge supports bulk domain and mailbox management, workspace organization, and compatibility with virtually any outreach software, enabling agencies and sales teams to scale multi-domain campaigns efficiently. It also includes automated account configuration, profile personalization, and best-practice implementation to maintain sender reputation and stable performance.Starting Price: $38 per month -
6
Cllavio
Cllavio
Cllavio is a high-deliverability email marketing and transactional email platform designed for startups and growing businesses. It includes a fast campaign builder, a powerful SMTP and REST API, clear analytics, AI-powered spam detection, and domain warming tools to help your messages reach inboxes. With automated bounce monitoring, DKIM/SPF/DMARC validation, Shopify integrations, and predictable pricing, Cllavio makes it easy to send newsletters, cold emails, bulk campaigns, and transactional notifications from a single dashboard. It's designed for teams that want speed, reliability, and scalable email delivery without the enterprise complexity.Starting Price: $9.99 -
7
Instantly
Instantly.ai
Instantly scales your outreach campaigns with unlimited email sending accounts, unlimited warmup, and smart AI. Clean & verify your lead lists and ensure your domains are correctly set up for cold emailing. Our one-click bulk domain tester lets you know if your domain is missing important records. Our Campaign Builder lets you use variables, sequences and smart scheduling to maximize your deliverability and response rates. Instead of having separate campaigns for each of your sending accounts you can add all your sending accounts to one campaign. Instantly will then rotate sending emails between these accounts to make it more natural. Managing 1 inbox is easy - with Unibox you can manage tens or hundreds of inboxes simultaneously. Mark leads as positive or negative, forward or respond to them to book meetings and close deals from one simple inbox.Starting Price: $30 per month -
8
AutoSend
AutoSend
AutoSend is a lightweight, cloud-based email delivery platform built to send and track transactional messages (like magic links, verification codes, and confirmations) and marketing campaigns with reliable deliverability and strong inbox placement; it provides a simple RESTful Email API with SDKs for multiple languages, SMTP relay support, and webhooks for event-driven workflows that let developers integrate email into apps quickly and reliably. It also offers tools for reusable templates, contact lists, and segmentation, campaign creation, email automations, real-time logs, deliverability analytics, and engagement tracking so teams can monitor delivery status, opens, clicks, bounces, and suppressions. AutoSend integrates intuitive dashboards that modernize both developer and marketer workflows with features such as migration support from other providers, dynamic suppression lists, personalization, and automation builders, helping organizations streamline email communication.Starting Price: $1 per month -
9
PursueApp
Teknikforce
PursueApp is a cloud-based software application that allows you to create highly personalized cold email marketing campaigns without spending a lot of time. It is a complete cold email marketing solution for agencies and B2B businesses. Its powerful SAAS helps marketers to generate more leads and sales through cold email marketing. Through PursueApp you can easily send your cold emails directly to the inbox and it will never hit the spam folder. Features of PursueApp: * It is an easy-to-use, newbie friendly software. * In-built ready-to-use templates to save time and efforts * In-built email verification and cleaning system * Provides option of sending bulk mails * GDPR and PECR compliance to keep your business safe. * Fully automated cold email campaigns * Send cold emails through Gmail, Gsuite, Outlook, Exchange or SMTP * Supports import of leads using CSV files * Provides training to help you do cold emailing correctly. * It is an easy-to-use, newbie friendly softwareStarting Price: $67/year -
10
Daily Sender
Daily Sender
Send emails to unlimited email subscribers with just one click. With online email marketing software its easy to setup html/text campaigns, send and track. You can now track opened, unsubscribes and bounces. Software also have auto bounce processing and one click unsubscribe features. We also offer Dedicated Bulk Smtp Servers if you want to send emails with your own dedicated IPs then please click here to see our dedicated smtp server plans. Daily Sender provides a complete email marketing solution which gives our client a platform to enhance their product and grow their business. Our clients are located worldwide and use our services to send email marketing campaigns. We provide reliable delivery, scalability and real-time analytics. You are also provided with a platform where-in you can track your complete statistics. Our web-based tools help businesses grow by staying in touch with customers and prospects through email.Starting Price: $149.99 -
11
SendFlock
SendFlock
SendFlock is an all-in-one cold email platform designed to streamline outreach efforts by integrating email warm-up, automated follow-ups, a unified inbox, and CRM functionalities. Users can connect multiple email accounts, regardless of the service provider, and manage them through a single interface. It offers automated email sequences, allowing users to focus on pitching new leads while the system handles follow-ups. Its email warm-up tool ensures maximum deliverability by gradually increasing sending volume and engaging with a warm-up network to build sender reputation. The unified inbox consolidates all email accounts, improving response times and efficiency. SendFlock's CRM provides an immediate overview of the sales pipeline, helping users prioritize valuable deals. Additional features include AB testing to optimize outreach messages, custom tracking domains to improve deliverability, a global block list to protect sender reputation, team member management, etc.Starting Price: $199 per month -
12
SendBlaster
eDisplay
SendBlaster is the best bulk email software to manage mailing lists and set up email marketing campaigns in few steps. SendBlaster combines into one product the practicality of a mass email software with the flexibility of a bulk email web service. On the one hand you create newsletters and manage lists directly on your desktop: on the other you get a cloud email tracking service to handle reporting and improve your email campaigns. Our brand new release SendBlaster, full of amazing features, is available both as a free email sender software download and a professional one with no subscription needed, just a single payment for a lifetime license. Plus, we are proud to offer a 15 days money back guarantee.Starting Price: $99 one-time payment -
13
EmailVerify by TargetNXT
TargetNXT
EmailVerify by TargetNXT is a fast and reliable email verification tool built for B2B marketers, sales teams, recruiters, and growth professionals who depend on outbound email outreach. It helps you clean your lists, reduce bounce rates, and protect your sender reputation before launching any campaign. With real-time validation, EmailVerify checks email syntax, domain status, and mailbox availability, while also detecting risky addresses such as spam traps, disposable emails, and role-based inboxes. Users can instantly verify emails without signing up and get accurate results in seconds for both single and bulk lists.Starting Price: $49/month -
14
Coresender
Coresender
We get your emails delivered in seconds. Your customers never have to wait for the emails they are expecting or need immediately, like password resets, order confirmations etc. We do all the hard work to place your emails straight in your recipient’s inbox, so you can focus on delighting even more customers and growing your business. Transactional emails, such as password resets, email confirmation links, order receipts must be delivered immediately. We ensure that they are always our top priority. That’s why we’ve separated our sending infrastructure, to ensure this priority. When you use a transactional sending account, you know your most important emails will never be affected even by the biggest of your email marketing campaigns. Your sender reputation is critical for email delivery and should always be your concern. We work with you every step of the way to improve your sender reputation score and keep it at a high level. -
15
Email Jeet
Teknikforce
Email Jeet is an autoresponder system that works on PC, allowing its users to send emails right from their laptop or even a VPS. It’s a bulk emailing tool that provides its users with full control over their marketing lists and can easily import the list. Email Jeet is an email marketing software that gets its users more sales than their autoresponders. It’s an absolute newbie friendly tool. Features of Email Jeet: * It allows users to easily import and export lists without any optin requirements. * Sends email through any SMTP services. * Gets open rates and generates more sales. * Supports mail scheduling. * Sends personalized emails as well. * One can mail multiple lists and even list segments. * Compatible with SMTP and mail providers. * Supports instant and scheduling of mails. * Keeps the list clean by removing bouncing email addresses. * Detailed reporting system of click and open rates. * In-built spam score analysis for better in-boxing.Starting Price: $37/year -
16
Email Checker AI
Evotik
EmailCheckerAI offers a bulk list email validation and API service designed to improve email quality by checking the deliverability and status of addresses before sending campaigns. It provides fast and accurate multi-layered validation that examines syntax, domain existence, DNS and MX records, SMTP mailbox status, disposable and throwaway emails, and catch-all or role-based addresses, categorizing emails as deliverable, risky, or invalid to boost send success and protect sender reputation. It supports CSV, TXT, XLSX, and XLS bulk uploads with real-time progress and comprehensive reporting, plus drag-and-drop list uploads and detailed results with validation status and recommendations. A developer-friendly REST API enables real-time integration into apps with sub-second response times and consistent JSON responses for programmatic email checks. It guarantees high uptime, secure SSL encryption, compliance with data standards, and optional support.Starting Price: $8.49 per month -
17
SMTP Provider
SMTP Provider
Experience the next level Email Marketing at an affordable price. Use a dedicated IP address to increase your sender reputation and avoid blacklisting of your IP due to someone else’s actions. Show that it’s really your own company and domain sending the message, and minimize the amount of messages that are marked spam by using the special cryptographic signatures SPF and DKIM. Our SMTP servers send your emails using secure SSL connection. Moreover, it's lightning fast. For each mailing list, you can discover the amount of messages sent out, the number of conversions made and links clicked, and many other details. Our SMTP service generates sending reports and delivery error reports. All reports can be downloaded to your computer. Your mailings won’t be sent to any addresses on the list of recipients who have unsubscribed, even if they are on a mailing list. Make sure that your emails are delivered to the inbox and not the spam folder. -
18
VerifiedEmail
VerifiedEmail
VerifiedEmail is the fastest, most accurate real-time email verification and bulk email list cleaning solution on the market today. VerifiedEmail offers the most competitive pricing without compromising privacy or security, thanks to its proprietary, on-demand infrastructure. It comes fully equipped with the following: - Real-time Individual and Bulk Email List Verification (duplicates removal, syntax checking, domain validation, SMTP verification and scoring, and more). - Fast and Reliable API - Website Widget - Pre-built Integrations (Zapier, HubSpot, Klaviyo, etc.) Bounced emails, spam traps, and damaged sender reputations cost businesses time and money. VerifiedEmail offers a straightforward, affordable way to clean and verify email lists quickly and accurately, helping businesses focus on what matters most: connecting with their audience.Starting Price: $7 -
19
BitFaster
Success Planned
BitFaster Alerts gives you absolute flexibility to integrate with your existing databases or applications and build automation solutions. Whether you want to implement simple instant notification (via Email or SMS) or perform complex data transformation, you can get things up and running in a matter of hours. With BitFaster, you can manage Bounced Email and Unsubscribe Requests completely handsfree. You can configure BitFaster to take action based on your inputs. BitFaster Live tracks Email Campaigns, Bounced Messages and Unsubscribes in real-time. We can help you overcome ISP limitations, take care of your Reputation Score and put the best practices in place to optimize message delivery. We provide both Shared and Dedicated SMTP services for sending bulk email campaigns. Or send your campaigns via our BitFaster Cloud. Whichever way you prefer! -
20
Bouncy
Bouncy
Bouncy is an AI-powered email verification and list hygiene platform that helps businesses clean, validate, and monitor their email lists to reduce bounce rates, improve deliverability, and protect sender reputation by removing invalid, risky, or disposable addresses before they harm campaign performance. Its verification engine performs 20+ checks per email, including syntax, domain existence, MX and SMTP validation, spam trap and disposable email detection, and role-address screening, producing detailed analytics and segmented results that let you export clean lists and focus on real contacts. It supports bulk list cleaning at high throughput, processing tens of thousands of emails per minute, and offers a real-time API so you can validate addresses at the point of capture in forms, checkout flows, or CRM imports with sub-second response times.Starting Price: $3.60 per month -
21
Sendster
Teknikforce
Elevate your email game with Sendster, a revolutionary Newsletter & Email Marketing Software. Install it on your own hosting, effortlessly import your lists and leads, and watch your email costs plummet – saving you thousands every month! Seamlessly integrate it with Amazon SES or any other preferred email sender. Sendster is not just an email marketing tool; it's a comprehensive solution. Enjoy features such as autoresponders, email campaigns, an AI writer, lead forms, a WYSIWYG email designer, a plethora of email and form templates, and more. Features of Sendster: Draft Perfect Emails With In-Built Al Writer Create Beautiful and high-impact Email Designs with WYSIWYG Designer Includes Dozens of Readymade Templates for Emails & Forms In-built Email Verification Powerful Autoresponder Email Segmentation Advanced delivery features - SMTP Round Robin, Subject & Content Spinning, URL Spinning & More. Integrations - Webhooks, Zapier & PabblyStarting Price: $67/user/year -
22
Heybounce
Heybounce
Heybounce is an email verification service that offers fast, accurate, and secure email verification. Its primary goal is to help companies reduce bounce rates and protect their sender reputation. Bulk email list verification: Upload CSV/XLSX files to validate large email lists. Remove invalid and risky emails, and land in the right inboxes. API integration: Allows real-time email verification integration to your platform. Catch invalid sign-ups when they happen, verify your lead pages, or integrate wherever emails are collected. It checks emails for valid syntax, domain existence, SMTP connectivity, and flags risky addresses such as disposables, spam traps, catch-alls, and role-based emails. Heybounce also offers team accounts for collaboration, customizable validation filters to fine-tune which addresses should be allowed or blocked, and flexible pricing for every budget.Starting Price: $8 - 1000 Credits -
23
Migomail
Migomail
Using an SMTP relay service like Miogmail is the simplest way to get started sending marketing and transactional emails. Send emails as per specific action or send series based bulk email relentlessly. Design creative customize email templates using drag-drop editor or use readymade responsive template. Security is Security is first priority, secure email infrastructure integration with SSL, DKIM, DMARC, SPF, SSL, TLS. Increase your email delivery with advanced management tools and Dedicated IP address. Create professional-looking personalized transactional, promotional and newsletter email. Utilize transactional/promotional SMTP or SMTP API to send bulk email. -
24
QuickMail
QuickMail.io
Our software improves deliverability & automates follow-ups so you get more replies with less effort. Create manually, use the contact form or import bulk prospects using CSV or Google Drive spreadsheets. Maximize your workflow by automatically importing your Google Drive spreadsheet whenever it is changed. Maximize your open & reply rate by making every email stand out with personalization. Create your own attributes/merge tag. Add variations with A/B Testing and dynamic text to improve deliverability and improve your reply rate. Wake up each day to find new leads, directly in your inbox, by building a predictable pipeline. We take prospects who replied automatically out of the campaign and reach out again later when they are out of the office. Spam filters are getting smarter each year. Our solution monitors and maintains the health of your inbox with our advanced auto-warmer technology so your emails have a greater chance to land in your recipient’s inbox.Starting Price: $49 per month -
25
Zapmail
Zapmail
Zapmail is a cold email infrastructure tool that simplifies the setup and management of Google Workspace mailboxes for high-volume outreach. It automates domain and mailbox creation, manages SPF, DKIM, and DMARC configurations, and ensures high deliverability, making it an ideal solution for agencies and freelancers running cold email campaigns. Zapmail offers features such as automated mailbox and domain setup, Google Workspace integration at discounted rates, bulk exports to cold email tools like Instantly and ReachInbox, AI-powered deliverability optimization, and API access with DNS management. With Zapmail, users can easily purchase Google Workspace email accounts at reasonable prices, schedule and send campaigns from unlimited accounts while keeping their domain reputation safe, and manage everything in one place to boost outreach performance.Starting Price: $2.50 per month -
26
Mailigniter
Mailigniter
Mailigniter is a robust bulk email software. It allows you to send personalized emails to a large audience with one click. The powerful analytics provides you with the insights into your campaigns allowing you to understand how your audience respond to your email. Using Mailigniter you will easily grow your lists, increase conversions, and optimise your audience engagement with beautiful emails and autoresponders, high-converting web forms, list segmentation, and unique delivery tools. Whether you need to sell your products, share some big news, or tell a story, our email template builder makes it easy to create an email marketing campaign that best suit your target audience. Mailigniter reports show you how well you're connecting with your audience. You get detailed reports for opens, clicks, unsubscribes, bounces, complains and much more, all shown in a simple and clear way. -
27
Hotsol
Hotsol
Send cold email. Start emailing your purchased B2B lists. Welcome new customers with transactional email, build credibility with newsletters, strengthen relationships with informational emails and keep customers engaged with announcements, invitations and updates. Hotsol is a bulk email service for purchased email lists. We work with small, medium and large companies to send cold email in volume on a daily basis. Whether its transactional or promotional email, our network architecture is customized to meet the specific needs of each individual client. Send cold email to purchased lists that is CAN-SPAM and GDPR compliant. Nurture your purchased lists and grow your business.Starting Price: $199 per month -
28
ScaledMail
ScaledMail
ScaledMail is a specialized email infrastructure platform designed to support large-scale cold email outreach campaigns while maintaining high deliverability and sender reputation. It provides businesses with preconfigured email infrastructure that allows them to send large volumes of outbound emails without needing to manually set up domains, mailboxes, or technical authentication systems. Instead of building and maintaining dozens of individual email accounts, users receive ready-to-use inbox environments distributed across multiple domains, which helps distribute sending volume and reduce the risk of emails being flagged as spam. It automates complex technical requirements such as DNS configuration and email authentication protocols, including SPF, DKIM, and DMARC, ensuring messages are properly verified and more likely to reach recipients’ primary inboxes. -
29
Atomic Mail Sender
AtomPark Software
Plan, create, and send email messages via our incredible bulk mailer. Also, monitor and receive your free mass e mail results within the program! Complete set of functions necessary for mass email-sending. Send email messages to an unlimited number of recipients. Monitor the results of your campaigns through Atomic Email Tracker service and Google Analytics. Email marketing is one of the most popular communication channels between a company or brand and customers. It is no wonder because with the help of mass emails company can sell goods and services, tell them about special discounts and offers and create an army of loyal audience. Furthermore, the cost of such advantages is not so high. For this, you should choose the right email marketing software and find out some rules of it. Use bulk emailing service such as Atomic Mail Sender and build an effective email campaign with the help of our tool. To make the email marketing campaign more powerful use bulk SMS.Starting Price: $89.90 -
30
MailRush.io
Cyber Cast International
We help businesses integrating Email Marketing channel for customer base growth. We do this by automating best practices for sending Email Marketing and by providing effective tools and metrics for long term outreach campaigns. The growth of your business depends on a steady stream of prospects. Stream Cold Email campaigns into your grow path with MailRush's Email Automation. Control your sending reputation with a dedicated IP. Maximize effectiveness by bundling multiple dedicated IP accounts. This means that you will not need external email accounts for sending your cold email campaigns. We automate your campaigns to avoid impacting negatively recipient servers by using email marketing best practices protecting the reputation of your domain and IP address. Start testing our Email Marketing Campaign Software with a free 1000 Email credit and unlimited subscribers. Start sending in minutes with one of the best email campaign tools.Starting Price: $50 per month -
31
Reachingly
Reachingly
Reachingly is a modern AI-powered solution for businesses and professionals who need reliable Email marketing tools for scalable, personalized outreach. It works as cold email software and an outbound email software suite, letting you build sequences, schedule sends, and manage campaigns from one dashboard. As a flexible cold email tool and cold email platform, it supports automated follow-ups and behavior-based triggers (opens/replies) to keep conversations moving. Teams use it as email outreach software and an email outreach tool to stay organized, consistent, and compliant across audiences and inboxes. With built-in cold email automation and email automation software features, Reachingly enables automated email outreach for follow-ups, reminders, onboarding, and sales workflows. Deliverability controls and performance analytics help protect sender reputation and optimize timing—making it a dependable cold email campaign tool for long-term growth.Starting Price: $29/month -
32
InboxWarm
OutReachBin
Positive interactions with your emails help increase your sender's reputation. We move spam emails to inbox and reply to emails to help your sender reputation increase, remain high, and ensure inbox delivery every time. Running OutreachBin email warmup daily will help ensure your emails always reach the inbox. Keeping this activity ongoing along with your normal email sending ensures the best results long term. We help you reach human-like activity on automation. Moving your sent emails from receivers' spam to inbox, replying back to emails, and interacting with them as well. All these actions work to give you the best results. If you want to ensure your emails land in your recipient's inbox, then warmup is the most crucial step. If your emails are currently landing in spam, promotions, or another folder, then warmup will help you increase your reputation over time. It will help you increase your domain reputation even for a new email and domain, or an existing one.Starting Price: $19.97 per month -
33
Clearalist
Clearalist
Clearalist Bulk Email Verifier guarantee the most precise result as they clean the entire list manually. This service will reduce your bounce rate by removing all invalid & duplicate email addresses from your list. Clearalist List Cleaning is one of the most trustworthy tools for cleaning and validating email lists for entrepreneurs. You can upload your email list on the Clearalist dashboard, click on the cleaned button, and your list will be cleaned in a few minutes. Did you know almost 24% of emails in your list may be invalid? When you repeatedly send messages to such invalid emails, it not only lowers your sender reputation but also hurts your ROI. The more you know, the better you are. We give 98%+ clear-cut results to keep your sender reputation. Find the catch-all type addresses to avoid emailing thereby improving the overall deliverability hygiene. Clearalist secures your IP reputation and increases deliverability by removing email bounces.Starting Price: $5 -
34
Postmark
ActiveCampaign
ActiveCampaign Postmark is the email delivery service that developers and product teams actually like. Send transactional and marketing emails and get them to the inbox, every time. Postmark maintains one of the best delivery reputations in the industry by routing transactional and promotional messages through parallel but separate sending infrastructure.Starting Price: $10/month for 10,000 emails -
35
Postmastery
Postmastery
Postmastery provides a platform for professional email monitoring that goes far beyond the obvious ‘click & open’ statistics. Postmastery’s Delivery Analytics platform processes SMTP delivery data from both on-premises mail servers and SMTP providers. It reads data from Microsoft SNDS, Return Path Sender Score and relevant blacklists. Users have access to real time dashboards and receive automatic alerts. High bounce rates, increased delivery times, junk foldering or blacklisting are serious problems in email marketing and they impact your business. Since they affect your reputation , it's best to stay ahead of them. Postmastery offers a baseline for improvement and carries out an email delivery assessment. And, if needed, our specialists provide hands-on support at infrastructure level as well. Focus on your core business and outsource your delivery monitoring to Postmastery. Email delivery experience, expertise and tooling is at your disposal via our 'email delivery control centre'. -
36
PlusVibe
PlusVibe
PlusVibe.ai is an AI-powered cold email automation platform built to streamline the entire outbound outreach process, from inbox warm-up and lead discovery to smart campaign execution and reply management. It helps users automate high-converting cold email sequences with context-aware, personalized messaging and AI-generated icebreakers, reducing manual work and boosting response rates. It includes secure email warm-up features that mimic real human engagement to build sender reputation and avoid spam folders, advanced deliverability optimization with monitoring and IP rotation, and built-in email verification to reduce bounces. Users can enrich prospect data from multiple sources, scrape contacts and company details with one click, and generate tailored outreach using insights pulled from profiles. PlusVibe also consolidates replies across inboxes, enriches them with sentiment and intent data, and automates follow-ups, bounces, and out-of-office responses.Starting Price: $37 per month -
37
VerifyEmail.io
VerifyEmail.io
VerifyEmail.io is an advanced email verification tool designed to help businesses improve email deliverability, reduce bounce rates, and protect their sender reputation. This software quickly scans email addresses in bulk or individually to identify invalid, disposable, or risky addresses, allowing users to clean and maintain their email lists. By verifying emails before sending, businesses can ensure their messages reach the intended recipients, whether for marketing campaigns, customer outreach, or support communications. VerifyEmail.io provides real-time email validation, offering comprehensive insights into the quality of the email addresses in a list. It integrates easily with popular email marketing platforms and CRM systems, making it a seamless addition to existing workflows. With its user-friendly interface and quick turnaround time, VerifyEmail.io is an essential tool for organizations looking to maintain high email engagement rates, improve campaign performance.Starting Price: $5/month -
38
Truelist
Truelist.io
Truelist is a subscription-based email verification platform that provides unlimited email validation for sales and marketing lists. It’s tailored for sales and marketing professionals as well as developers, offering one-click integrations with popular platforms to simplify list imports. With no need to purchase credits, teams can validate lists affordably and efficiently. Additionally, Truelist offers free single email validation, making it versatile for both bulk and individual verifications. By keeping lists clean, it boosts engagement and strengthens sender reputation, essential for effective email outreach.Starting Price: $60/month -
39
Bulk Mailer
Bulk Mailer
Bulk Mailer is the best email marketing software created to design, send and monitor bulk messages. The utility has its own built-in SMTP server that enables it to deliver mass email messages directly to the recipients' mailbox. Bulk Mailer makes it possible to control the effectiveness of your email campaign, it enables you to monitor who, when and where (from what country) opens your email. With mass email software it becomes easy to manage your contacts lists and create personalized HTML messages. This program is indispensable for those who run bulk email campaigns. With its powerful features bulk email software yields spectacular results and beats your business rivals. Bulk Mailer accepts mailing lists generated in Access, Excel, DBF, Word, made in ASCII text files (.txt, .lst). It should be mentioned that it is possible to enter an unlimited number of email addresses. Bulk Mailer provides you with an extremely flexible sending engine. -
40
ExactVerify
ExactVerify
ExactVerify is an advanced Email Validation Tool designed to improve the quality and efficiency of your email communication. With a powerful suite of tools, it ensures your email lists are accurate, reliable, and ready for outreach. Through Real-Time Email Validation, it eliminates invalid addresses, syntax errors, catch-all domains, and disposable emails, enhancing deliverability rates and safeguarding your sender reputation. Key Features: Bulk Email Verification: Quickly verify large email volumes, ideal for businesses with extensive mailing lists. Real-Time Validation: Validate emails instantly via forms or integrations to reduce bounces. Email List Verification: Remove duplicates, hard bounces, and spam traps to maintain a Clean Email List. Email Verification Widget: Seamlessly integrates for real-time checks during data collection. ExactVerify is GDPR and DPDP compliant, ensuring secure, private data handling for exceptional campaign results.Starting Price: $6 -
41
Hunter
Hunter.io
Hunter lets you find professional email addresses in seconds and connect with the people that matter for your business. The Domain Search provides a list of the people working in a company with their name and email address, all found on the web. With 100+ million email addresses indexed, effective search filters and deliverability checks, it's Hunter's most powerful email-finding tool. Type a name and get the proven or most likely email address of this person. Find verified email addresses or get a confidence score in percentage. Save any email to your leads and export them or directly import them into your favorite CRM. Every email address has public sources you can check along with the last discovery dates. Find the email addresses of the professionals you want to contact one by one or in bulk. The Email Finder uses a large number of signals to find the proven or most probable email address of anyone in a fraction of a second.Starting Price: $49 per month -
42
QuickEmailVerification
QuickEmailVerification
A leading email verification service company, QuickEmailVerification helps marketers clean email lists, reduce hard bounce, achieve better email deliverability and improve campaign performance. Our unmatched 99% accuracy lets you send email campaigns with confidence. Verify email lists with our industry-leading bulk email verifier. Use our real-time email verification API to validate email addresses and prevent fake signups. Scrub email lists from CRMs and improve your data quality. Or carry out email validation of individual addresses. Our powerful email checker tool separates valid, deliverable email addresses from invalid or undeliverable addresses and lets you choose which ones to retire. Remove poor quality email addresses like disposable, role-based, accept-all addresses from your mailing list. Poor quality email addresses can get you blacklisted. Clean email list today to increase email marketing ROI, maintain sender reputation and comply with ESP guidelines.Starting Price: $4.00/one-time -
43
Tailormails
Tailormails
Tailormails – Your All-In-One Outreach Platform From first contact to final conversion, Tailormails provides everything you need for smarter outreach. Powered by AI, it makes cold emailing faster, more personal, and more effective. Key Features: AI Email Crafting: Turn LinkedIn bios or prospect data into reply-worthy emails with personalized variations and optimized subject lines. Lead Management: A built-in mini-CRM to track prospects from new to converted without leaving the app. Automated Campaigns: Set up multi-step sequences with AI follow-ups to book more meetings effortlessly. AI Inbox: Connect Gmail/Outlook to auto-categorize replies (Interested, Not Interested, Needs Info) and pause campaigns when needed. Bulk Generation: Create dozens of personalized emails at scale from CSV lists. Compliance Assistant: Stay GDPR and CAN-SPAM compliant to improve deliverability.Starting Price: $4.55 -
44
TransMail
Zoho
Guaranteed and instant delivery for your transactional emails. Your transactional emails carry crucial information. TransMail is a reliable and secure service that delivers these all-important emails instantly. With high-speed delivery and great inbox placement, TransMail means you no longer keep your customers waiting. Transactional emails are unique emails that are usually triggered by some user action. More often than not, your customers are expecting these emails in their inbox within seconds of the trigger action. Pick the right delivery service and keep your customers happy. Your users will no longer be left refreshing their inbox for their email verification code or password reset emails. Email deliverability is a consequence of the reputation of the sender IP address. TransMail is built exclusively to tackle the challenges of sending transactional emails.Starting Price: $2.50 per credit -
45
Mailtrap
Railsware
Mailtrap is an email delivery platform for developers and product teams, providing a flexible RESTful API and SMTP service to send emails at scale. The platform is built with a focus on high inboxing rates, fast delivery, and 24/7 technical support from deliverability experts. Mailtrap ensures 99.99% uptime with dedicated IPs, auto warm-up, and sender reputation protection. Developers can integrate quickly using SDKs for major languages (Python, Ruby, PHP, etc.) and manage high-volume sending with a customizable API. The platform provides industry-best analytics with helicopter-view dashboards to monitor key metrics and 30-day logs for easy debugging. Trusted by over 150,000 monthly active users including Yelp, PayPal, Atlassian, and Adobe.Starting Price: $15/month -
46
MassInbox
MassInbox
MassInbox is a simplified way to send cold emails on a scale. Describe your business, provide your landing page or a funnel and we'll do the rest. Skip the boring email list building, lengthy domain setups, meetings and email copywriting. Choose from a package of 150K or 350K mass email outreach and start growing your business with MassInbox. Pause your subscription at any time. 1) Instant Setup 2) 85%+ Inbox Guarantee 3) Results within 48 hours 4) Campaign Reporting 5) Pause anytimeStarting Price: $3995/month -
47
Maileroo
Maileroo
At Maileroo, we provide a powerful platform for both SMTP relay and email marketing. We ensure fast, reliable email sending with real-time tracking of deliveries, clicks, opens, and bounce rates. With our free Email Verification API, dedicated IPs, and DNS Records for sender authentication, we help reduce bounced emails and improve deliverability. Our email marketing platform makes it easy to create and manage campaigns. You can personalize emails, use our drag-and-drop email templates, form builders, and flexible Contacts API. We provide real-time statistics and in-depth analytics to help you optimize your campaigns and boost engagement. We also offer seamless DNS setup, automation tools, multi-sender identities, and efficient contact management. Whether you're a small business or growing enterprise, Maileroo offers budget-friendly pricing and everything you need to scale your email marketing, making it a smart choice for businesses of all sizes.Starting Price: $10 per month (25,000 emails) -
48
MailBoxValidator
MailBoxValidator
Secure and reliable email validation service to check for invalid email addresses. It connects to the mail server and checks whether the mailbox exists or not. It reduces email bounce rate & costs. It increases conversion rate & sender reputation. Immediate results for email validation. Results returned in either JSON or XML formats. Checks if the mail server uses spam trap as honeypot. Checks to see if the email address is from a free email provider like Gmail. Checks to see if the email address is from a disposable email provider like Mailinator. Checks if an email is in our own Do Not Mail list. Checks if an email address is a role email like admin, support, webmaster or sales. Removes duplicate emails in list to save cost. Upload a mailing list to speed up bulk cleaning. Validate a single email immediately. Free bulk trial plan with 100 credits. -
49
InboxFlow
InboxFlow
InboxFlow simplifies your cold email infrastructure from the get-go. When you buy your burner domains, we automate SPF, DKIM, and DMARC setup. Plus, they're automatically redirected to your landing page, ensuring your prospects never encounter an invalid page. With your domains and email authentication sorted, it's time to supercharge your cold email campaigns. InboxFlow's user-friendly interface empowers you to configure dozens of inboxes across different domains with unprecedented ease. Spend less time on setup and more time connecting with your prospects. InboxFlow's bulk-account upload feature takes your cold email game to the next level. We provide you with a CSV file that allows you to effortlessly import and manage multiple inboxes in your favorite sending tool. Say goodbye to tedious, manual processes, and hello to streamlined efficiency. Simplify cold email infrastructure for unbeatable deliverability.Starting Price: $45 per month -
50
MailFlow.io
MailFlow.io
Not having SPF & DKIM properly setup is a one-way ticket to spam. We will verify it's properly configured and help you do so with confidence so you can send emails safely. A blacklisted domain drastically affects your email deliveries. We monitor close to 100 blacklists, so you'll be the first to know if one of them decides they don't like you so you can react fast. Keep track daily of your sender reputation with various providers helps you decide if you should continue or slow down some email activities. Make sure your cold outreach domains lead to a valid web page. Get notified immediately if the page is broken so you can fix it immediately. Make sure your email doesn't land in Spam, or don't stay there. Our advanced technology helps boost your deliverability drastically so your message can be received & read.Starting Price: $49 per month
