Alternatives to SMTP Provider
Compare SMTP Provider alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to SMTP Provider in 2026. Compare features, ratings, user reviews, pricing, and more from SMTP Provider competitors and alternatives in order to make an informed decision for your business.
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1
Greatmail
Greatmail
Dependable cloud based email hosting with spam filtering, antivirus protection, generous storage and webmail. Compatible with Outlook and all other POP3/IMAP clients. High volume SMTP service for responsible senders. Outbound relay service for transactional messages, email marketing campaigns, newsletters and other applications. Dedicated email servers, clustering and multiple IP load balancing for high volume senders. Fixed monthly cost with unlimited sending and reputation monitoring. Greatmail is an email service provider (ESP) specializing in business class email hosting, SMTP hosting and email servers. For ISPs, application programmers and cloud developers, we also provide custom solutions including dedicated IP servers and process specific, load balanced configurations with multiple servers. -
2
SendGrid
Twilio SendGrid
Email is the backbone of your customer engagement. The Twilio SendGrid Email API is the email service trusted by developers and marketers for time-savings, scalability, and delivery expertise. Our flexible Email API and proprietary Mail Transfer Agent (MTA), intuitive console, powerful features, and email experts make it easy to ensure all your email gets delivered in seconds and without interruption. Monitor engagement data and optimize deliverability with our Deliverability Insights dashboard. Whether you’re sending 100 emails or 100 billion, SendGrid is built to scale. Integrate with our RESTful APIs and SMTP in minutes, with sample code libraries available in 7 languages, interactive docs, templates, and more.Starting Price: $19.95 per month -
3
Critical Impact
Critical Impact
Critical Impact allows you to enhance and simplify your email marketing campaigns. Our tools let you effectively manage your email and SMS lists, send personalized and automated emails, along with text messages (SMS) for your marketing campaigns all at a competitive price model. Our subscriber scoring algorithms will mine your data to quickly identify those subscribers who are most likely to read your next email, consume additional emails, or make another purchase. With our easy-to-use interface, you can schedule messages to send in minutes. Select your send options all on one page, and then prevent mistakes by seeing a confirmation of all your send details. Even A/B test your email across device screens – from phones to tablets to monitors. -
4
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 -
5
Labnify
Labnify
Labnify provisions email API and SMTP-integrated mailer so you won't need any of those pesky SMTP credentials. A system that delivers and track mass emails reliably enriched with features like real-time analytics, open/click metrics, bounce/spam tracking, template builder, and more. No one likes being blacklisted. That's why our innovative blacklist monitoring feature keeps a watchful eye on your sending reputation, ensuring your emails always land in the recipient's inbox. Plus, Labnify takes email authentication seriously, utilizing DKIM/SPF authentication to enhance your deliverability and add that extra layer of security. Millions of emails have relayed via Labnify as it's easy to work with. Simply import your email list and hit SEND without the need for an SMTP credential, making it a 2-in-1 email marketing stack. Built on the most cost-effective Email API, deliverability and scalability matter. Easily connect and send your email using our automated system and scale.Starting Price: $99/month -
6
OutboundSMTP
OutboundSMTP
DKIM Signing improves the inbox placement of mailbox providers like Gmail, Office365. Multiple Servers in the USA and Europe for increased reliability. No more headaches of managing and maintaining your own email server and IP reputation. Create SPF and DKIM records for your domain names, no prior experience required. If you are suffering from an IP blacklisting our SMTP relay service can solve your reputation problems. 24×7 technical support via phone, chat or email. We are here to ensure your mail gets delivered. you’ll be able to deliver your mail reliably to the inbox. We optimize our sending routes and closely monitor our IP reputations to ensure you the best possible service. We have a Zero Spam Policy that allows us to block or restrict messages that would damage our reliability or the reputation of our customers. You may send from an unlimited number of “From” addresses or domains after you have verified your domain ownership via DNS.Starting Price: $4 per 2,500 messages -
7
WP Mail SMTP
WP Mail SMTP
If you're having issues with WordPress not sending emails, you're not alone. With the rise of aggressive spam filtering, it's tough to reach the inbox unless your emails are configured correctly. Once you've switched from the default WordPress email settings over to WP Mail SMTP, your email deliverability issues will be solved for good. Are you missing out on leads and sales because emails sent from your WordPress site are ending up in the spam folder? Missing out on these opportunities can be a big hit to your bottom line. When your emails are properly authenticated using SMTP, they'll be recognized as legitimate and bypass those aggressive spam filters. WP Mail SMTP integrates with all of the best secure SMTP providers. No matter how many emails you need to send, you can connect with the right provider for your business needs and budget.Starting Price: $49 per year -
8
SMTP2GO
SMTP2GO
Send and track all emails easily and securely with SMTP2GO, a reliable outgoing email service solution. SMTP2GO features a redundant, multi data center infrastructure that allows users to send emails even if there is a major internet outage. SMTP2GO has features like real-time analytics, bounce/spam tracking, weekly summaries, spamtrap detection, blacklist monitoring, DKIM/SPF, and more.Starting Price: $10 per month -
9
mySMTP
mySMTP
Send email to whoever you wish with unlimited capacity and traffic. The mail server works regardless of whether you are using your desktop computer at home or a laptop, tablet or telephone while you’re on the move. Avoid blacklistings and forget maintenance, updates, down time and other hindrances. We send your email campaigns to the entire world via stable SMTP cloud servers. If you choose a dedicated SMTP cloud server, you send email using your own IP number and domain. This gives you full control of the reputation of what you send. If you need a fullscale professional system to handle email lists and make state of the art email content - we offer Mailwizz. More emails are sent than ever before and there is still no new product on the market that looks like it would be able to replace email as the direct route to the attention of the recipient. When it comes to marketing, email gets the highest marks for return on investment with regard to advertising in social media, for example. -
10
Bit SMTP
Bit Apps
Many site owners face the spam mail problem for using the WordPress default PHP mail function. There may be some restrictions when it comes to mail service: sometimes emails are not delivered, sites cross the limit of outgoing mail. Bit SMTP plugin allows you to authenticate the mail service of your site by configuring the SMTP server of your desired mail service. SMTP is a protocol that helps your WordPress site make its email deliverability more easygoing & reliable. By enabling this feature, you can send mail from your site to your recipients via your preferred mail server. -
11
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. -
12
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. -
13
SendPulse
SendPulse
A multi-channel marketing automation platform designed to help marketers create personalized promotional campaigns. Users can choose between email, SMS, and web push notification or build an elaborate message sequence by combining several channels in a single campaign. When it comes to email marketing, the platform packs all the necessary tools to automate lead nurturing and lead generation. Users can create custom subscription forms and grow their mailing list. Intuitive drag and drop allows users to design mobile-friendly email templates or choose a predesigned one from a massive gallery. The company, also, offers a transactional email service that users can use to send up to 12000 free emails via SMTP or API. SendPulse has its own chatbot builder. Users can create a Facebook Messenger chatbot or a Telegram chatbot and use it to send personalized campaigns or as an autoresponder.Starting Price: $9 per month -
14
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 -
15
EmailSuccess
DIENNEA SRL
EmailSuccess is an enterprise-level SMTP Server for high volume email sending. EmailSuccess is an MTA (Mail Transfer Agent) solution for senders of any size: ESPs and Marketing Automation Companies. High Performance EmailSuccess is an MTA designed to deliver high email volumes, giving the business full control over Speed, Latency, Reliability and Deliverability parameters. Deliverability Deliverability is key for the clients to reach their target easily. Ensure that the email has the best chance of avoiding spam filters and landing in the inbox. Advanced Sending Intelligence Optimized delivery by tuning email delivery parameters automatically and in real-time; making platform tuning ever so easy.Starting Price: $0 - $4000 -
16
Microsoft SMTP Service
Microsoft
Microsoft SMTP Service is a mail server software that enables Microsoft Windows Server operating systems to send and receive emails. It is a component of Internet Information Services (IIS) and is used to relay emails between mail servers. Microsoft SMTP Service is a popular choice for organizations that need a reliable and scalable mail server solution. It is easy to install and configure and can be used with a variety of email clients. Microsoft SMTP Service supports a number of features, including: Relaying emails between mail servers: Microsoft SMTP Service can relay emails between mail servers, which means that it can be used to send and receive emails for multiple domains. Supporting multiple email clients: Microsoft SMTP Service can be used with a variety of email clients, including Microsoft Outlook, Mozilla Thunderbird, and Apple Mail. Providing security features: Microsoft SMTP Service provides a number of security features, such as authentication and encryption -
17
Sendmail
Proofpoint
The sendmail Sentrion platform is specifically designed for large, complex environments, but we make a subset of that solution available as an open-source offering. Sentrion is not for everyone, but if you are using open source email for a large complex environment and need an enterprise platform that will enable your messaging roadmap for years to come (virtualization, consolidation, cloud migration, etc.). The Domain Keys Identified Mail (DKIM) Internet standard enables email senders to digitally sign their messages so that receivers can verify that those messages have not been forged. The DKIM sender authentication scheme allows the recipient of a message to confirm a message originated with the sender’s domain and that the message content has not been altered. A cryptography-based solution, DKIM provides businesses an industry-standard method for mitigating email fraud and protecting an organization’s brand and reputation at a relatively low implementation cost. -
18
Mailchimp Transactional Email (Mandrill)
Mailchimp
Transactional emails: Reach inboxes when it matters most. Deliver fast, personalized transactional emails using API or SMTP. Get the benefits of our experience sending billions of emails globally. Send personalized transactional emails that reach inboxes, not spam folders. Customize your analytics with pre-built dashboards, export API, and more. Read documentation guides, or contact our award-winning Support team for help. Use custom tagging, whitelabeling, conditional content, and more. Globally distributed infrastructure: Featuring automatic SPAM loop registration and pre-warmed dedicated IPs. Get analytics in multiple ways, plus custom tags, A/B test capabilities, and comparative reports. Utilize white-labelled click tracking, custom reverse DNS, rules engine, custom return path, and sub-accounts. That’s the average time to delivery for top 3 ISPs, sent from our MTAs to the recipient’s email server. -
19
MailerSend
MailerSend
MailerSend is a transactional email and SMS service designed for developers to work faster and smarter. A drag & drop builder and dynamic templates enable anyone at any skill level to create personalized transactional emails, while our SMS templates help you create professional transactional SMS messages. MailerSend’s advanced infrastructure scales with your sendings, while the latest security protocols protect your sender reputation. Plus, you can integrate your email sending and tracking in your apps using SMTP or a flexible email API. Built by deliverability experts, and with the inbuilt email verification tool, you can rest easy knowing your messages will be delivered and avoid spam folders, while dedicated IPs are available for high-volume senders. Plus, inbound routing enables your customers to interact with your messages, sparking conversations and increasing engagement. Get started for FREE with 500 emails, then upgrade for as little as $7/month for up to 5000 emails.Starting Price: Free -
20
Elastic Email
Elastic Email
Tens of thousands of companies already send their emails with Elastic Email. An amazing Email Marketing platform, built on the most cost-effective Email API. Deliverability, reliability and scalability matter. Easily connect and send your email via our HTTP API or SMTP relay and scale to 100+ million emails per month on our ultra-fast global infrastructure. Build better relationships with your recipients with every campaign you send. Elastic Email provides all the marketing tools you need to help your contacts feel connected. Deliverability, reliability, and scalability matter. Easily connect and send your email via our HTTP API or SMTP relay and scale to 100+ million emails per month on our ultra-fast global infrastructure. Get the most out of your email marketing. Create beautiful emails, send newsletters, and automate your campaigns in a flash.Starting Price: $5 one-time payment -
21
turboSMTP
turboSMTP
TurboSMTP understands that email is not just a means of communication but the backbone of your customer engagement strategy. TurboSMTP Email API is trusted by developers and marketers alike for its time-saving features, scalability, and delivery expertise. Our service offers a flexible SMTP relay solution along with advanced features tailored to meet the needs of businesses of all sizes. With our intuitive dashboard, powerful features, and dedicated support, ensuring the delivery of your emails is seamless and uninterrupted. TurboSMTP's infrastructure is built to scale, whether you're sending a few hundred emails or millions. Integration with our service is effortless, with sample code libraries available in multiple languages, interactive documentation, and customizable templates. Monitor engagement data and optimize deliverability with our comprehensive reporting tools. Trust TurboSMTP to deliver your emails reliably and efficiently, empowering you to engage with your audience.Starting Price: $14.95 per month -
22
Ongage
Ongage
Ongage is an email marketing platform for advanced email marketers who send high-end campaigns and want to understand their audience better. Developers and non-developers can run high-volume campaigns, with advanced capabilities, on an intuitive dashboard that provides full control and get the job done! Gain actionable insights into customer behavior, send data-driven emails, segment according to intent, and more. Design personalized experiences based on your customers’ actions, with automated real-time emails that funnel your audience towards your goals. Ongage is a one-stop-deliverability-shop, with system capabilities, reports, and experts that can slice and dice deliverability from every angle. Sync your CRM, CDP, and data warehouse with Ongage and optimize campaigns to make an impact in real-time. Connect any SMTP relay, MTA, or use the built-in Ongage SMTP to send your emails. In Ongage, you can send from several SMTPs or just one. -
23
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'. -
24
AuthSMTP
AuthSMTP
AuthSMTP is the outgoing SMTP email service for your e-commerce website, mailing list or email application on most current computers and mobile devices. With instant setup, a money back guarantee and very low cost starter accounts you can test and start sending email in minutes with no risk. Our systems are custom designed / built for reliability and performance when processing and delivering very high volumes of email. We use high performance and redundant systems to help ensure we can provide the highest levels of availability. We provide an online Control Panel plus email and web based support backed by knowledgable support staff on hand to provide help if required. We have over 15 years experience providing email services and getting emails delivered quickly and accurately to your recipients.Accounts are created instantly when you sign up so with our setup guides you can start sending email within minutes.Starting Price: $36 per year -
25
SpamCheetah
Gayatri Hitech
SpamCheetah is a very affordable and effective way to combat spam, malware and viruses at mail server level. It operates as an SMTP proxy and stops all kind of phishing and business email compromise at SMTP level. It uses a combination of network level techniques like greylisting, greytrapping, blacklisting, URL scanning, malware API checks and a lot more. It comes with standard email gateway features like sender and recipient based blocking, attachment size blocking, MIME type filtering and pattern based blocking alongside quarantine reports and mail metadata reports and much more. We offer trial for 30 days along with two editions, one for single mail server and one for multiple mail servers. We also offer ISO download, VMWare appliance and raw VM download options.Starting Price: $1/month/user -
26
Mailgun
Sinch
Mailgun is an email automation solution that is suitable for developers. With Mailgun, users are able to access a complete cloud-based email service for tracking, sending, and receiving emails sent via their applications and websites. Mailgun supports several programming languages including Python, Ruby, PHP, Java, and C#. With Mailgun's tracking feature, users are able to track all emails and reduce the chances of getting spam.Starting Price: $0.01/month/user -
27
Mailcot
Mailcot
Email Marketing Services allows your business to email the consumer whenever you want. While not every email needs to be a sales pitch, your contact with the customer should provide something of value to them. If you are looking for a Transactional SMTP service, then you probably have an application that sends out either marketing or transactional messages and is searching for a host to relay these messages in bulk. Create fully automated campaigns with the world’s most intuitive workflow builder. Apply tags, trigger campaigns, add delays, branch with if-then logic, and do about 30 other things. With powerful functionality that allows businesses to move quickly. Drive more sales with email marketing that really resonates. Nurturing your leads with our platform , give points and covert it from lead to customers.Starting Price: $7.19 per month -
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Instant Bulk SMTP
Instant Bulk SMTP
We understand how important role marketing plays in business and by looking that we have designed our Instant Bulk SMTP service which help to start sending your campaign in less than 30 minutes. Manage multiple contact lists, add, remove, delete, and import-export. Not only can you check bounces, opens, and click-throughs using our email analytics. You can set up or integrate with your applications. Easy to upgrade to a higher plan without any hassle. Instant Bulk SMTP is an outgoing email service that will allow you to send emails from your email address whether you have your own software or you don’t have your own software. We understand how important the role marketing plays in business and by looking at that we have designed our Instant Bulk SMTP service which helps to start sending your campaign instantly. Unlike typical email marketing services, our high-volume SMTP hosting service lets you send from your own application server, email client or a combination of different sources.Starting Price: $50 per month -
29
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) -
30
Amazon SES
Amazon
Amazon Simple Email Service (SES) is a cost-effective, flexible, and scalable email service that enables developers to send mail from within any application. You can configure Amazon SES quickly to support several email use cases, including transactional, marketing, or mass email communications. Amazon SES's flexible IP deployment and email authentication options help drive higher deliverability and protect sender reputation, while sending analytics measure the impact of each email. With Amazon SES, you can send email securely, globally, and at scale. Using either the Amazon SES console, APIs, or SMTP, you can configure email sending in minutes. Amazon SES also supports email receiving, enabling you to interact with your customers at scale. Regardless of use case or sending volume, you only pay for what you use with Amazon SES.Starting Price: $0.10 per month -
31
G-Lock EasyMail7
G-Lock Software
Easy Installation. Send Your First Email in Minutes. G-Lock EasyMail7 is supplied with a rich collection of HTML email templates that you can install and use for your newsletters on the fly! Improve your deliverability by scanning your emails through all the major spam filters before you send. Receive a spam score as well as actionable tips for improving your delivery rates for every email send. No need to rely on a third-party to store your mailing lists and messages. G-Lock EasyMail7 stores your email list and messages locally – on your own machines, keeping your data safe and secure.Starting Price: $259 per year -
32
SendPost
SendWorks
SendPost replaces manual workarounds, messy hacks and daily frustrations that come along with your email API/SMTP provider. See if you are sending only a few thousand emails then most email API solutions work well. You will choose one of them based on price, features or support. The real problem comes if you are one of the big senders—sending millions of emails per month. That's when managing multiple sending domains, IP-Pools and IP/Domain reputation becomes a severe headache. At that scale, even a minor dip in your email open rate or deliverability impacts your revenue. You want a solution which helps you understand what broke with your email deliverability and how you can fix it quickly. You don't want to spend hours wading through logs and manually checking if your domain or IP is blacklisted or your sending reputation is low.Starting Price: $7 per month -
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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 -
34
Mail2Reach
SSA Soft
Mail2Reach is a completely unique and innovative web-based bulk email system that makes sending mass mails a breeze. This system enables organizations to send an unlimited number of emails to an unlimited number of recipients in one go. Mail2Reach allows you to send text and HTML emails, along with attachments, templates and multiple connections. Moreover, the system is equipped with extremely flexible and powerful sending engine, with the ability to send out emails automatically, and as per the decided schedule. The program uses a so-called “direct” sending mode. This means that messages are sent directly to the recipient’s mail server. This technology speed up the email sending process significantly. Easy import of recipients from Excel and CSV spreadsheets. Manage multiple businesses with different dedicated accounts. Powerful HTML editor to compose your emails in a presentable manner. -
35
UniOne
ECOMZ Holding
Up to 5 million outgoing emails per hour. 99.8% of your emails will arrive at their destination. Feel like you might need a dedicated IP? Let us know and we’ll provide one, while also keeping an eye on the performance and stability of our shared IP pools. Get started with Web API or SMTP in minutes. GDPR compliant. No sensitive data to upload, just make a request to send an email and get the statistics back. UniOne has no personal information stored on our servers. Check your email statistics, keep an eye on delivery rates, openings, click-throughs, and unsubscriptions to manage your contacts more effectively. If you find your results are low, UniOne will make a few recommendations as to how to fix this. Running out? The system will let you know when your monthly plan is going to expire. You can also add multiple notification addresses so your IT team will be updated with recent reports or invite your teammates as shared access members to manage the account together.Starting Price: $4/month/6,000 emails -
36
Warmup Inbox
Warmup Inbox
Warmup Inbox automatically raises your email sending reputation through our network of inboxes that talk to each other. The process of preparing an email address for general use or email outreach is commonly referred to as “Warming Up” an inbox, where you take a number of steps to ensure that an email address does not become deactivated, blacklisted, or automatically marked as spam when it begins to send outgoing messages to other recipients. This process is typically done with newly created email addresses but also benefits older email addresses who have been having issues with email deliverability, in that a noticeable portion of their outgoing mail is either landing in a spam folder or blocked entirely by an email server due to either being blacklisted or associated with a domain that has a poor reputation. Warming Up an email inbox essentially is recreating the way a typical person will use an email address.Starting Price: $19 per inbox per month -
37
Arnica EmailServer
Arnica Software
Arnica EmailServer is an enterprise-strength tool for automating both mass-emailing and single email processing tasks. Arnica EmailServer also provides functionality for performing either scheduled or on-demand download of incoming emails for multiple accounts and storing them in easy-to-access database tables through specially created database APIs. All email queue, mass-mail and incoming email management is done through a web browser interface. Arnica EmailServer allows you to avoid direct interfacing with low-level SMTP subsystems by providing a high-level easy-to-use application programming interface. You may publish emails into an outgoing queue (or mark them to be sent immediately) using web requests with posted XML provided by Arnica EmailServer, which includes email content together with sender/recipient information as well as other data required for sending an email. -
38
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 -
39
SMTPBOXES.COM
SMTPBOXES.COM
It is necessary to modify your domain name system (DNS) records in order to use our service.If you don't know how, we can do this for you for FREE! We provide you with SMTP connection for your mass email client, as well as free online sending platform upon registration. It is our job to check and maintain the servers in order to serve you with 98% deliverability! Please keep recipients list hygiene. We provide reliable and flexible SMTP servers that can adapt to all kinds of situations. There are two main categories in terms of email delivery process. Mass emails and transactional emails. We encourage you to use our service for mass email campaigns, although transactional emails work as well! You just have to tell us the purpose and we will make the adjustments. Email deliverability is something that we know you care about. That is why we periodically do email marketing campaigns ourselves and track the performance.Starting Price: €23.99 per month -
40
MailEngine
Teknikforce
MailEngine is a self-hosted autoresponder software that is planned with an emphasis on inboxing & conveyance starting from the earliest stage. MailEngine is a full-fledged autoresponder system. It is built right inside WordPress for the convenience of your customers. MailEngine has all the features that you use inside your autoresponder and seamlessly sends out emails to your list of customers. Features of MailEngine: * Send emails through Gmail and GSuite, with its in-built Gmail’s API integration * With an in-built content spinner, you can send a unique email every time * In-built spam detector notifies when any spam word is used in a mail * URL spinner creates a unique URL every time you send a mail. The person who clicks, goes to the correct page * You can easily set up mail with its email scheduling feature and send whenever you want to * Sends an automatic mail follow-up sequence to anyone who subscribes to your list * Supports GDPR compliances * Detailed reportingStarting Price: $37/year -
41
Clickback
Clickback
Clickback MAIL is email lead generation software, and it’s different from traditional marketing automation and email service providers. How? It lets you send 100% CAN-SPAM (US Anti-Spam Law) compliant email campaigns to your cold or purchased B2B contacts. Clickback MAIL also filters out detected Canadian and European emails to ensure your campaigns remain CASL (Canada Anti-Spam Law) and GDPR (EU Privacy law) compliant. Put your cold email list to work and start landing high-quality B2B leads by sending effective marketing campaigns to your targeted list of contacts. The easy message creator lets you design professional emails that not only look great, but get opened. Use the drag and drop editor to build powerful messages, and preview your content on desktop and mobile screens. The design and feel of your email campaign can have a big impact on its success. A well-crafted email message that also looks beautiful can highlight the professionalism of your brand.Starting Price: $280 per month -
42
Debug Mail
DebugMail.io
How Debug Mail work The service provides command-line access to the virtual SMTP-server. The sender and receiver addresses can be anything, since no real mailings are sent. The technology used by application developers does not matter, the service will work with PHP, Python, Ruby, Node.js, .NET and many other programming languages and frameworks. Sharing options Sharing is the main feature of Debug Mail. To see what the service and other mailings will look like, just connect the right users to the project in the service, and they will see the same thing as the developer who is testing the mailing. What you can do in Debug Mail - Send emails to non-existent test addresses instead of real ones. - Set up email distribution lists with colleagues using team access. - Work together with other developers on the service.Starting Price: $2 per user per month -
43
PowerMTA
Bird
PowerMTA is an enterprise-grade email message transfer agent (MTA) software for sending high-volume, business-critical emails. PowerMTA can be run on your own server or in any public cloud such as Amazon Web Services or Microsoft Azure. With unmatched reliability and powerful analytics, PowerMTA gives you total control of your email sending. Improve performance, deliverability, and team efficiency with a simple set up, a small hardware footprint, and robust analytics. Try PowerMTA with Signals today, with volume pricing starting at $8,000 per year. PowerMTA includes SparkPost Signals, offering a complete view of your email sending. Analyze per-domain, per-campaign, and even per-recipient performance, allowing you to optimize your sending and prevent problems before they occur. PowerMTA provides unsurpassed delivery and performance in a stable SMTP environment. High-speed sending with total control.Starting Price: $8000 per year -
44
ISnotSPAM
ISnotSPAM
Sending newsletters and email marketing is not easy. You need to work on the design, the graphics and the content. Being busy with all that work, you might forget to check if your content is set to trigger some spam filter which will send your hard work straight to the subscribers' spam folder. IsNotSpam online spam checker was created to help you test email and newsletter content, and alert if it is likely to trigger spam filters. 99.99% of email accounts use spam filters these days. Spam filters recognize spam messages by analyzing message content for spam characteristics. Sometimes these filters fail and mark legitimate emails as spam. Such emails are sent to the Spam folders and are not seen by the recipient. This filter failure is called a "false positive" as it marked a legitimate non-spam message as spam. Newsletter senders and email marketers need to check that their emails do not have spam characteristics in order to lower the risk of their newsletters being marked as spam. -
45
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 -
46
Netcore Email API
Netcore
Choose the best email API or SMTP for the most robust email delivery experience. Netcore Email API (formerly known as Pepipost) provides a powerful transactional email delivery infrastructure and AI-powered inboxing which is reliable, scalable, secure and easy-to-use, at the most affordable pricing plans. We help brands to engage with their customers at the right moment with the right content over emails.Starting Price: $25 per month -
47
PerfectMail Antispam
PerfectMail
PerfectMail delivers better than 99% filter accuracy with false positives (wanted e-mail blocked as spam) at less than 0.1%. PerfectMail automatically learns about your users and their regular e-mail peers and never blocks their e-mail. The only time PerfectMail might have an issue is with a questionable e-mail from new senders. This takes the risk out of antispam filtering. Most spam filters work like this: receive e-mail, queue, filter, deliver or send a non-delivery reply. The problem with this model is that mail is delayed and senders/recipients may never realize that wanted messages were blocked. PerfectMail works in real-time meaning that it filters messages as they are received - without queuing. This means that PerfectMail tells the sender if their message is being blocked. - PerfectMail's antispam engine is programmed C - the fastest programming language in the world.Starting Price: $499 one-time payment -
48
Kingmailer
KingSMTP.com
KingSMTP.com (formerly known as Kingmailer.co, founded in 2017) is a Transactional SMTP service provider. It’s designed to help businesses reliably send emails such as order confirmations, password resets, or notifications, but it’s not intended for mass email campaigns or marketing.Starting Price: $0 per month -
49
Inout Email Marketer
Nesote Technologies
Inout Email Marketer (formerly known as, Inout Mailing List Manager) is a bulk mailing and mailing list management script developed in PHP. Send numerous email campaigns & manage unlimited amount of emails & lists from one script. Create projects to manage multiple campaigns and automatically trigger post dated campaigns. Detailed statistics, multiple SMTPS & Live tracking allow you to stay in complete control. Latest version brings you an elegant layout which gives you a better and improved interface to work on. Inout Email Marketer comes up with a better layout which gives you a smooth experience. Gain quick and easy access onto Email Marketer while on the go. The responsive design will fill any screen mobile or tablet. Latest version allows admin to explore a new dashboard in our script. A new look dashboard is available which gives you a brief idea on campaigns in our script.Starting Price: $249 one-time payment -
50
Yet Another Mail Merge (YAMM)
Awesome Gapps
Send mass emails with Gmail. Reach the primary inbox, not promotion tab or spam. Track results in real-time directly from Google Sheets. Don’t waste time sending individual email messages. Create and send mail merge campaigns directly from Gmail with Yet Another Mail Merge (YAMM). Create your Google Sheets with your mailing list. You can even automatically import contacts from Google Contacts. Choose an email template, create a draft, write your content and subject line, add personalization, and save it. Return to Google Sheets, open Yet Another Mail Merge, and send. You'll be able to track email open rates, clicks, replies, and bounces to know what to send next. Easily send personalized email campaigns from Gmail. Create a message in Gmail (you can use saved Gmail templates). Send and track it from a Google Sheet. Personalize subject lines, email body, links, images and attachments to make your emails as convincing as possible.Starting Price: $20 per year
