Alternatives to HCL Notes
Compare HCL Notes alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to HCL Notes in 2026. Compare features, ratings, user reviews, pricing, and more from HCL Notes competitors and alternatives in order to make an informed decision for your business.
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1
Proton Mail
Proton AG
Proton Mail is the simplest way to protect your communications with built-in end-to-end encryption. Prevent data breaches, stay compliant with regulations like GDPR and HIPAA, and earn client trust. Protected by Swiss privacy laws and trusted by over 50,000 businesses, Proton Mail keeps your business data confidential and under your control. With Proton Mail and Calendar, your team can securely manage their inbox and schedule, while your organization maintains a professional presence with support for custom email domains and personalized branding. And with the Easy Switch tool, migrating from Google or Microsoft is seamless, no IT expertise required. -
2
eM Client
eM Client
Boost your email and skyrocket your productivity with the best email client for Windows and macOS. eM Client is a fully-featured email client with a clean and easy-to-use interface. It also offers features for calendars, tasks, contacts, notes, and chat. eM Client's compatibility is unmatched. You can connect to any email service – it will work. This email client works seamlessly with Google Workspace, Office 365, Outlook, Exchange and virtually all conceivable email technologies. Integrates with Online meeting tools such as Zoom, MS Teams, Google Meet and more. eM Client enhances email communication for professionals and home users alike. It is the only email app on the market with the full support of server-side rules and search, instant message translation, "Snooze email" and “Watch for reply” features + easy to use email encryption (PGP and S/MIME). It also works perfectly with Gmail, including support for tags and signature synchronization.Starting Price: $59.95 one-time fee -
3
Google Workspace
Google
G Suite just got better — introducing Google Workspace (formerly G Suite). Everything you need to get anything done, now in one place. An integrated workspace that’s simple to use, Google Workspace lets you spend less time managing your work and more time actually doing it. Address what’s important and let Google handle the rest with best-in-class AI and search technology that helps you work smarter. Work from anywhere, on any device – even offline – with tools to help you integrate, customize, and extend Google Workspace to meet your team’s unique needs. Similar to G Suite, all Google Workspace plans provide a custom email for your business and includes collaboration tools like Gmail, Calendar, Meet, Chat, Drive, Docs, Sheets, Slides, Forms, Sites, and more. We have a variety of plans that are designed to meet your unique business needs. Discover which plan best fits your business needs on our plans and pricing page.Starting Price: $6 per user per month -
4
EssentialPIM
Astonsoft Ltd.
EssentialPIM is the award-winning email client and complete information management solution. It handles all your email messages, appointments, contacts, tasks, notes and password entries with easy-to-use, intuitive tools.Starting Price: $39.95 -
5
Spike
Spike
Spike brings your entire workspace into your Inbox: email, chat, calendar, calls, team collaboration, tasks — to one powerful Inbox. Everything you need to get your work done is in a single feed, so you can finally give the app-switching a rest. Spike’s conversational email fuses traditional email with instant messaging — eliminating cluttered email threads. With real-time conversations and live collaboration, have better interactions and a more human communication experience. Spike is available on iOS, Android, Mac, Windows & Web.Starting Price: Free -
6
TouchMail
TouchMail
TouchMail is an email app that brings all your accounts into one place with a visual, colorful display that saves you time on your email! TouchMail looks and works great with a touchscreen, or keyboard and mouse. Color code messages by sender. Browse messages at a glance. Less clutter in a few taps. Sort and quickly clean up mail from top senders. The top-rated email app for Windows 10, with over 1.5 million downloads, and one of Microsoft's "Essential Windows 10 Apps". Works great with touch, or quickly scroll and browse with your mouse or touchpad. TouchMail is the fastest and easiest way to find what matters most and clean up the rest in Gmail, Outlook.com, Yahoo Mail, iCloud, AOL, Office 365, and most IMAP email accounts. Turn your email into a visual and colorful inbox that you can explore the way you want – using touch, mouse and keyboard, or pen – with rich visualizations, colorful message tiles you can resize, and familiar interactions.Starting Price: $29.99 one-time payment -
7
Superhuman Mail
Superhuman
Superhuman Mail is an AI-powered email application designed to help professionals manage their inbox faster and more efficiently. The platform focuses on improving productivity by reducing the time users spend reading, writing, and organizing emails. With features like keyboard shortcuts, reminders, and AI-assisted writing, Superhuman helps users respond to important messages quickly and consistently. The app integrates with Gmail and Outlook, allowing teams to upgrade their existing email workflows without switching platforms. Users can schedule emails, snooze messages for later, and receive reminders to follow up on unanswered emails. Built-in read receipts and activity indicators provide insight into when recipients open messages or when teammates are replying. By transforming email into a task-driven workflow, Superhuman Mail helps users stay organized and avoid missed communication.Starting Price: $30 per user per month -
8
Nine
NextIntelligence.ai
Nine is a comprehensive mobile business solution for email, calendar, contacts, tasks, and notes management, designed to keep your business seamlessly synchronized across devices. It offers robust support for both personal and professional productivity, enabling users to manage their workflow from anywhere. Nine is compatible with IMAP and Exchange servers, using Direct Push technology to synchronize emails, calendars, tasks, and notes in real time. For enterprise use, Nine Work integrates with Android Enterprise and MDM solutions, ensuring secure synchronization with Exchange Server while offering enhanced security for corporate data. The app enables easy management of personal and company schedules, integrates tasks with emails, and offers smooth contact synchronization. With its intuitive interface, Nine allows users to handle work-related notes and emails effortlessly. It’s designed for business professionals who need mobile access to their business communications.Starting Price: Free -
9
Newton Mail
CloudMagic
Email app with space-age features for modern-day business communication. Designed to delight, for all your email accounts, on all your devices: iPhone, iPad, Android, Mac & Windows. Read Receipts comes baked in with Newton, with all your sent emails tracked without you having to do anything. Apart from giving you instant gratification, it also makes your follow-ups timely and effective. Recap automatically brings back conversations that are waiting for your reply or that need following up. It also covers other mails with due dates, reminders etc., so that nothing slips through the cracks. Tidy Inbox helps you stay clear of unwanted emails by automatically removing newsletters and other distractions from inbox. Focus on the emails that actually matter and make your inbox distraction-free. Most of us are assigned tasks via email. But some of us like to manage them outside our Inbox. Newton lets you save emails to Todoist, Evernote, OneNote, Trello or Asana in a single click.Starting Price: $49.99 per year -
10
SmarterMail
SmarterTools
SmarterMail is the ideal Microsoft Exchange alternative. It’s the only business email server on the market that offers native support for Exchange protocols: MAPI, EWS, and EAS, without requiring any additional software or plug-ins for Microsoft Outlook or other desktop or mobile clients. It delivers all the features of Exchange at a fraction of the cost. SmarterMail also includes audio/video group chat and Online Meetings for team collaboration at no extra charge. Its newest feature, the SmarterMail Marketplace, enables seamless integration with platforms like OnlyOffice, Collabora, and AI tools such as OpenAI’s ChatGPT. Available for both Windows and Linux, SmarterMail has lower hardware requirements, superior stability, and reduced maintenance costs. It’s the perfect solution for businesses of any size or industry seeking Exchange-level functionality, without the high costs.Starting Price: $500.00/one-time -
11
Amazon WorkMail
Amazon
Amazon WorkMail is a secure, managed business email and calendar service with support for existing desktop and mobile email client applications. Amazon WorkMail gives users the ability to seamlessly access their email, contacts, and calendars using the client application of their choice, including Microsoft Outlook, native iOS and Android email applications, any client application supporting the IMAP protocol, or directly through a web browser. You can integrate Amazon WorkMail with your existing corporate directory, use email journaling to meet compliance requirements, and control both the keys that encrypt your data and the location in which your data is stored. You can also set up interoperability with Microsoft Exchange Server, and programmatically manage users, groups, and resources using the Amazon WorkMail SDK. Amazon WorkMail features simple, low, monthly per-user pricing and costs $4 per user per month which includes 50GB of storage per user.Starting Price: $4 per user month -
12
Pingly
Pingly
Pingly is a beautiful, modern email service built for today's internet. Enjoy email again with a modern and easy to use interface. Pingly isn’t just an email client, it’s also a full-featured email provider that hosts email on your domain. hat with your team using Channels. Pingly integrates email and team chat into a single interface. Save time and stay focused without having to switch between different apps. Pingly is your communication hub Message or talk seamlessly with anyone over Email, Text & Voice from a single unified platform. Pingly brings email and team chat into one place so you can stay focused and get work done. Whether for your business or side-project, Pingly is built for organizations of all sizes ranging from solo entrepreneurs to large teams. At its core, Pingly is a modern, full-featured email service built for today's internet. Setup email on your domain with Pingly in minutes and have your team collaborating together in no time.Starting Price: $5 per user per month -
13
Vivaldi Mail
Vivaldi Technologies
A powerful email client built right into your browser. Vivaldi Mail makes it easy to manage emails from multiple accounts, mailing lists and feeds in a unified inbox. A database of all your messages, labels, filters, searches is maintained by Vivaldi and the bedrock of our powerful email client. Mail from all of your accounts is indexed, so it’s searchable offline. Having a mail client built into your browser just makes sense. Compose messages in new tabs, keep multiple messages open and manage them with ease using Vivaldi’s extensive tab features. There are two counters next to folders in Vivaldi Mail. Brand new mails that have never been seen before are called Unseen. Emails that you have seen but not dealt with are Unread. Use customizable Keyboard Shortcuts to work through email faster. Use the Back/Forward buttons to jump in through “history” and views while you work.Starting Price: Free -
14
ExtraFax
extracomm
ExtraFax is a faxing solution that enables users to send and receive faxes directly from their e-mail or web client. Easy to use and learn, ExtraFax for Microsoft Exchange and ExtraFax for Notes/Domino are add-on applications that were built from the ground up. Completely scalable to meet the needs of any organization, from SMB to large enterprises. ExraFax enterprise cloud faxing is a high-capacity, reliable, and globally accessible service that enables the transmission and reception of faxes from any internet-connected application, with no installations. ExtraFax™ allows its customers with HCL Notes/Domino™ or Microsoft Exchange™ to integrate fax communication seamlessly and cost-effectively on desktops and with their custom business applications. Whether you are a small, medium, or multinational enterprise, ExtraFax™ can work to improve communications efficiency and lower the cost of sending faxes.Starting Price: $7 per month -
15
OpenText GroupWise
OpenText
OpenText GroupWise is a secure, enterprise-grade messaging and collaboration platform that combines email, calendaring, contacts, and scheduling into a single, flexible system. It is built for organizations that require strong security, compliance, and reliability across highly regulated industries such as government, education, utilities, and healthcare. The platform enables teams to customize the user interface, integrate with systems like Microsoft Exchange and Active Directory, and centrally manage contacts, address books, and shared calendars. GroupWise includes intelligent scheduling tools, travel-time adjustments, and collaboration features that help streamline workflows and improve daily productivity. Its security measures—such as multifactor authentication, encryption, and gateway protection—ensure that sensitive communications stay protected. -
16
Loop Email
Loop Email
Its hard being productive when you spend half your time reading emails, and the other half flipping between platforms to tell your team about said emails. You need a single app thats going to help you move faster and keep everything and everyone on the same page. As a collaboration hub, Loop Email connects your team so you can chat, exchange files, and manage shared inboxes easily. It brings messages, emails and files in one app. Loop Email helps teams connect, collaborate and communicate all in one place. Available for Mac, Windows, iOS & Android.Starting Price: $8 per user per month -
17
myMail
My.com
An expert way to manage all email accounts. Your email provider doesn’t support push notifications? With myMail it does. Hate it when an email wakes you at night or distracts you from your barbecue? Choose when you want to receive push notifications. myMail brings profile pictures of your contacts to your message list. Take a look at your inbox to instantly know who’s writing you. myMail displays icons from popular services so that you can recognize the sender in a blink. Your friends don’t use an avatar? We’ll do it for them! For a contact that has no avatar, myMail displays the first letter of the contact’s name. myMail does exactly what it’s meant to do – help you manage your emails – and it does this incredibly well. Traffic compression brings your messages into your mailbox quickly. So you can use your data plan for other things, like watching that cool video. Brings your email in superfast even if the number of messages and contacts you have grows to an amazing size. -
18
Mail Pilot
Mail Pilot
Mail Pilot is a privacy-first email app designed to help users manage email fatigue and declutter their inboxes. With a clean, focused interface, it allows users to prioritize their most important messages while organizing others into a calm, manageable workflow. Mail Pilot supports all standard IMAP email servers and ensures your emails stay on your device, avoiding third-party servers. The app is native to macOS and offers an intuitive task-based approach to handling emails. Users can sort emails into actionable tasks, schedule messages, and archive emails with ease, all while maintaining an emphasis on privacy and simplicity. The app’s streamlined design has received praise for making email management both efficient and visually appealing. Additionally, Mail Pilot provides a secure environment for managing personal and professional correspondence, ensuring that users can control their inboxes without feeling overwhelmed. -
19
IceWarp
IceWarp
The only office rule is, there is no office. Business email, TeamChat for project teamwork, real-time office document collaboration and online meetings. All in our secure cloud and for half the usual cost. Chat in teams organized around projects, upload files, mention coworkers, comment on posted emails, pin important posts. Integration with email enables sharing received messages directly to TeamChat room for colleagues‘ attention. Skyrocket your office work effectivity with Desktop Client and Desktop Office documents on Windows as well as Linux devices. Get the complete Suite, or choose only the app you need.Starting Price: $312.00/year/user -
20
Claws Mail
The Claws Mail Team
Claws Mail is an email client (and news reader), based on GTK+, featuring quick response, graceful, and sophisticated interface, easy configuration, intuitive operation, abundant features, extensibility and robustness and stability. The appearance and interface are designed to be familiar to new users coming from other popular email clients, as well as experienced users. Almost all commands are accessible with the keyboard. The messages are managed in the standard MH format, which features fast access and data security. You'll be able to import your emails from almost any other email client, and export them just as easily. Lots of extra functionality, like an RSS aggregator, calendar, or laptop LED handling, are provided by extra plugins. Claws Mail is distributed under the GPL. -
21
Zero
Zero
Zero is an open source email application designed to prioritize user privacy and security, offering a customizable email experience. It allows users to manage their emails across various categories, such as primary, important, personal, updates, and promotions, enabling efficient organization and navigation. As an open source solution, Zero encourages community collaboration and transparency, inviting users to contribute to its development and enhancement.Starting Price: Free -
22
Spark Mail
Readdle
Love your email again. The best personal email client. Revolutionary email for teams. Intelligent email prioritization, noise reduction, and the most advanced email tools at your disposal. Reach Inbox Zero for the first time. Spark intelligently prioritizes your email. It bubbles important messages from real people to the top. Pin and reply to those, and batch archive the rest. Spark reduces the noise by only notifying you about emails from people that you know. Reclaim your space for creativity and get peace of mind. We do our best work as part of a team. Spark allows you to create, discuss, and share email with your colleagues. Take your team collaboration to the next level. Collaborate with your teammates using real-time editor to compose professional emails. Invite teammates to discuss specific email and threads. Ask questions, get answers, and keep everyone in the loop. Save time when you regularly send similar email messages to people.Starting Price: $6.39 per user, per month -
23
Mailspring
Foundry 376
Boost your productivity and send better email with Mailspring, the best mail client for Mac, Linux, and Windows. Multiple accounts (IMAP & Office 365), touch and gesture support, advanced shortcuts, lightning-fast search, undo send, unified inbox, read receipts, link tracking, and more, mac, windows, and linux support, themes and layouts (including dark mode), localized into 9 languages. Mailspring indexes your mail so you can use advanced, Gmail-style search queries and search message contents across all your connected accounts. Never lose an email again. Understand your audience. Send timely follow-up. Turn clicks and opens into actionable insights. Mailspring Pro is your unstoppable email sidekick for sales and business. Mailspring Pro removes the limits in the free version, so you can snooze messages, schedule reminders, and send later an unlimited number of times and conquer your inbox. Understanding your contacts and customers is the key to connecting with them.Starting Price: $8 per month -
24
QQmail
Tencent
QQmail app gives you an excellent email experience and instant new mail notifications. You may access your QQ e-mails from an Android device more efficiently. Get new mail notifications instantly, and send photos and files from your phone using QQmail. Preview attachments online or open them with apps on your phone. Search emails in all or specific folders and manage emails easily in the inbox,group-mail folder, personal folders, and other POP account folders. Access emails with enterprise email accounts. Synchronous update data between your phone and computers.Starting Price: Free -
25
Clyton
Gammadyne Corporation
Clyton is an email client with advanced security and spam filtering features. The spam filter is highly configurable and supports DNS blacklist checking (DNSBL). Expect 85% of spam to be eliminated with the default configuration. Email that is suspicious but not obviously spam is quarantined for 24 hours and then retested, providing the blacklist enough time to react to new spam sources. The built-in address book supports personalized mass-mailings. Received email cannot run scripts, download multimedia, or use embedded objects without your approval. Other features include encrypted storage, whitelisting, powerful HTML editor, attachment viewer, message drag and drop, custom message templates, SSL encryption, USB flash drive installation, and much more.Starting Price: $29 -
26
BlueMail
Blix
BlueMail by Blix a free, beautifully designed, universal email app, capable of managing an unlimited number of mail accounts from various providers, allowing for smart push notifications and group emailing while enabling personalization across multiple email accounts. The BlueMail app connects directly to your mail server and is the perfect replacement for your stock email app. With a wide range of visual and technical customizations, swipe actions and menus, action bars and buttons, colors and themes – BlueMail delivers powerful capabilities for your Team. Whether you go Pink or Blue. Go BlueMail. Available on Windows, Mac, Linux, Android, iOS, and Amazon. With the people-centric mailbox, you can focus your attention on emails from only people at the flip of a switch by using People Mode. BlueMail’s navigation picker helps you access any account: IMAP, Exchange or POP3 in a breeze. Each account can be identified by a service provider avatar.Starting Price: $5.99 per user per month -
27
SWING PDF Converter for Notes
SWING Software
SWING PDF Converter for Notes exports IBM Lotus Notes emails, documents and databases to PDF+XML. The tool introduces greatly simplified email and document export and archiving capabilities to IBM Notes/Domino. It adds the PDF icon to the Lotus Notes toolbar, which lets users convert one or more Notes emails or documents. Domino Administrators can archive entire databases or particular views/folders without user intervention. LotusScript API is provided for application developers. Any collection of Lotus Notes emails or documents (e.g. project-related or case-related emails/documents) can be exported into either individual PDF (or PDF/A) files, or merged into a PDF binder with the navigation tree, or saved as compact, searchable PDF Package. Domino Administrators may need to archive entire databases or particular views/folders across multiple databases without user intervention. For instance, a conversion job can be configured to extract emails from specific folders.Starting Price: $250.00/one-time/user -
28
RainLoop
RainLoop
Modest system requirements, decent performance, simple installation and upgrade, no database required - all these make RainLoop Webmail a perfect choice for your email solution. Modern user interface. Complete support of IMAP and SMTP protocols including SSL and STARTTLS. Sieve scripts (Filters and vacation message). Minimalistic resources requirements. Direct access to mail server is used (mails are not stored locally on web server). Allows for adding multiple accounts to primary one, simultaneous access to different accounts in different browser tabs is supported. Additional identities. Administrative panel for configuring main options. Really simple installation and update. Integration with Facebook, Google, Twitter and Dropbox. Managing folders list. Simple look'n'feel customization. Configurable multi-level caching system. Extending functionality with plugins installed through admin panel. Perfect rendering of complex HTML mails. Drag'n'drop for mails and attachments.Starting Price: $95 per year -
29
K-9 Mail
K-9 Mail
K-9 Mail is designed for both novice and power users and offers lots of features for everyone. K-9 Mail has controllable debug logging. Users can activate logging to help diagnosing problems and errors. As an open source privacy-conscious project we don’t implement an always-on logging system that reports all the device’s activity to a central server. While this would make issues easier to fix it would also be costly to host the server and compromise the privacy of our users. Communication security is an increasingly important subject. K-9 Mail aims to provide intuitive e-mail security in many forms, both in terms of supporting secure login to your e-mail server and in the security of the e-mail itself. -
30
MailEnable
MailEnable
MailEnable provides an end to end solution for providing secure email and collaboration services. A recent independent survey reports MailEnable as the most popular Windows Mail Server Platform in the world. Whether you are a hosting company providing email services to thousands of end users or a small business with a single domain, MailEnable provides a solution that will impress your mail users. MailEnable provides Windows Mail Server software with features comparable to Microsoft Exchange. It provides powerful messaging services like Exchange ActiveSync, IMAP, SMTP, POP3 and collaboration tools such as calendaring (CalDAV), contacts (CardDAV), tasks and notes.Starting Price: $349 -
31
Mailpile
Mailpile
Mailpile is an effort to reclaim private communication on the Internet. A project to rescue our personal lives from the proprietary cloud and prevent our conversations from being strip-mined for corporate profit and government surveillance. Mailpile is taking e-mail back. Powerful search & tagging makes your pile of mail managable, whether you have just a few messages, thousands or even millions. Mailpile is designed to be fast and responsive, outperforming "the cloud" even on slow computers. And it works even when the Internet is down. OpenPGP signatures and encryption are part of Mailpile's core design, not an afterthought. Mailpile makes it easy to sign and encrypt your mail. It's ironic that most web-mail solutions filter out spam, only to replace it with their own advertisements. Mailpile has no ads. -
32
Airmail
Airmail
Airmail 3 — This fully accessible mail client was designed specifically for iOS, macOS and watchOS. Email workflow is optimized with extensive customizations, custom actions and deep integration with a wide range of apps and services. Airmail is designed from the ground up to be a powerful mail client which allows you to customize it to meet your needs. Integrate your favorite apps, and create custom actions to make your life easier. Whether you're using your Mac, iPad, iPhone or even your Apple Watch, Airmail can be wherever you need. Add as many email accounts of any type your like to Airmail. (Gmail, GSuite, iCloud Mail, Exchange, Office 365, Microsoft Outlook, IMAP and POP3). See all of the email in all of your inboxes at once with the unified inbox feature. You can even exclude accounts from this view if you want to. When you just want to see the important emails, the smart inbox is here for you.Starting Price: $2.99 per month -
33
Notion Mail
Notion
Notion Mail is an AI-powered email platform that reimagines the inbox with a minimalist, customizable interface designed to streamline communication and enhance productivity. It allows users to organize their inboxes through AI-driven auto-labeling that categorizes emails based on content, such as job offers, travel bookings, or newsletters. Users can create custom "Views" to filter emails by topic, sender, or urgency, enabling focused attention on what's most important. It supports Notion-style slash commands for formatting, built-in scheduling linked with Notion Calendar, and AI-assisted email drafting to expedite responses. Snippets allow for reusable email templates, reducing repetitive writing tasks. Notion Mail maintains robust security standards, including SOC 2 Type 1 certification and HIPAA compliance, ensuring user data is protected.Starting Price: $10 per month -
34
Birabo
Birabo
A Simple Tool For Effortless Collaboration. Keep Files, Notes And Links Together. No more switching between e-mail, Dropbox and Google Docs. Collaborate In Real-Time. Share files and notes quickly, simply and safely. Stay Organized. Use tags, colors and assign members. Birabo is such an easy and powerful tool, that finally makes it possible to quickly share resources when we're working on a specific project or new idea. We've built a product that we needed for ourselves, and we'd like to share it with you. With Birabo, you will never lose your project files, notes, folders and links again. Share them with your team in one workspace, in real-time.Starting Price: $1.99 per month -
35
Mail.com
Mail.com
Choose your email address from our huge selection of domains – from @elvisfan.com to @consultant.com – to suit all your needs. At mail.com you can create a personal and unique email address to express who you are, entirely for free. Start by choosing your username and desired email domain from the 200 domains which are listed below. Become a premium user to benefit from exclusive features. Once you register as a free user, you can easily upgrade your account. mail.com is a free webmail client based in the United States. It offers a wide range of unique email domains, a customizable user interface, as well as numerous useful features integrated in each email account. Purchased in 2010 by the German United Internet Group, Europe's leading internet specialist and one of the world's largest web hosting provider.Starting Price: Free -
36
Trojitá
KDE
Trojitá is an email program ("client") specialized in giving fast and efficient access to mailboxes over the IMAP protocol. An IMAP mail server stores messages and allows clients to fetch messages to the local computer when asked for. It prioritizes efficiency, speed and open standards above other goals. Trojitá also aims to be multi-platform, and functions well on everything from big desktop computers to small cellphones. Trojitá is a stand-alone program, not part of a "personal information manager" suite. -
37
Mithi SkyConnect
Mithi Software Technologies
Cumulative storage accounts for usage variance across users and optimizes the storage provisioning saving enormously. Open for Integration - Open standards-based integration with a wide range of collaboration tools, client applications, and business applications. Integrate with third-party ESGs, DLPs, mail notifiers, and several other tools to define your stack. Co-exist with external cloud workspace solutions to develop cost-optimal multi-cloud hybrids. Back up your critical email data, manage your ever-growing mailbox storage with cloud-native data protection. Share files, organize ideas and initiatives with note-based team collaboration. Add-on Vaultastic to back up your critical email data and benefit from the on-demand discovery, improved compliance postures and reduced data loss/tampering risks. Cumulative storage, choice of free and paid clients, zero management, maintenance all add up to reducing costs substantially.Starting Price: $1 per month -
38
MiOffice
MiOffice
MiOffice is a modern AI-powered office productivity platform designed to simplify everyday business workflows. Instead of relying on multiple disconnected tools, MiOffice brings document handling, file conversion, collaboration, and smart automation into a single unified workspace. Users can upload, edit, convert, merge, and organize PDFs, images, audio, and video files while leveraging AI to automate repetitive tasks and improve efficiency. The platform is built for freelancers, students, startups, and teams who want faster and simpler digital work management. MiOffice reduces tool switching, saves time, and improves productivity by combining essential office utilities with intelligent AI assistance. -
39
MailAI
MailAI
MailAI is an AI-powered email-automation platform that deploys personal AI agents that run 24/7 in secure, isolated sandboxes to manage, respond to, and automate workflows in your inbox and calendar. Your agent can auto-respond to customer inquiries, monitor invoices via Stripe, coordinate meeting schedules, generate daily summaries of unread emails, and carry out custom tasks, all triggered by simple plain-English instructions. Built for enterprise-grade data security, MailAI integrates deeply with tools like Gmail, Google Calendar, and Stripe, and supports conversational interaction where you can ask your agent to “find all emails from Sarah about the Q4 deadline” or “schedule a check-in meeting and send the invite.” The system includes powerful features like inbox management, invoice and task tracking, email templates, performance-based workflows, and built-in compliance protections (CASA-verified sandboxes, encryption, GDPR/CCPA support).Starting Price: $25 per month -
40
Front
Front
Front’s powerful customer service platform makes five-star service attainable for over 9,000 businesses like yours. We bring together your core support channels in one intuitive, AI-powered workspace where your team can build collaborative workflows across the entire customer lifecycle. As your customer base and their needs grow, Front AI and customer intelligence serves up the efficiency and insights needed to keep your entire organization customer-first, every day. Plus, we care as much about our customers as you do yours: we provide industry-leading service to our entire customer base, regardless of your team size.Starting Price: $19.00/month/user -
41
Sylpheed
Sylpheed
Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client. Sylpheed provides intuitive user-interface. Sylpheed is also designed for keyboard-oriented operation, so Sylpheed can be widely used from beginners to power users. Sylpheed runs on many systems such as Windows, Linux, BSD, Mac OS X and other Unix-like systems. Sylpheed uses GTK+ GUI toolkit. The newest version of Sylpheed works with GTK+ 2.4 or later (2.6 or later is recommended). Sylpheed is a free software distributed under the GNU GPL (the library part is GNU LGPL). You can freely use, modify and redistribute it under the license. Sylpheed adopts 3-paned display similar to the popular e-mail clients for Windows such as Outlook Express and Becky. So it is easier to use it on the first time. The user-interface is constantly improved, and Sylpheed achieves attentive, comfortable operationality. -
42
Yahoo! Mail
Yahoo!
Yahoo Mail is a free email service from Yahoo, as well as a mobile app for email management. Thanks for checking out the Yahoo Mail app—the best email app to organize your Gmail, Microsoft Outlook, AOL, AT&T and Yahoo mailboxes. Whether you need a clutter-free mailbox, added customization, different views for deals, receipts, and attachments, or even more storage, we’ve got you covered. -
43
Mailtrim
Mailtrim
Reinventing email to live in your inbox! A powerful standout mail tool to send and receive organised email communications. Sync all your emails Manage all your emails and contacts from multiple accounts easily in one unified inbox. Best free email client. Highly customisation. Give a new look to your email with the finest outlook alternative, the mailtrim. Choose from a ton of customizations to send a unique type of business email. Best free email client. Secure and private. Have round-the-clock control on the emails you send and receive! Acquire this secure email client and apply pgp encryption to hide the contents of your emails. Sophisticated and slick UI. Have high user-experience with a minimally designed interface. Find everything fast! Have this best free email client for personal and professional use that has an easy-to-navigate immersive user interface. The quick to use email client for windows and mac allows the users to send smart emails.Starting Price: Free -
44
EverDesk
EverEZ Systems
EverDesk is the first and only email client which stores email messages as individual files together with your other files and documents in regular Windows folders, so you can keep all the information related to the same subject together and work with it in a simpler, more flexible, and more powerful way. EverDesk combines the best features of your email client, file manager, Windows Desktop, address book and calendar into a single tightly integrated interface, making it the most advanced information management software on the market. EverDesk's integrated email and file management distinguishes it as a uniquely powerful information manager on the market. Each EverDesk edition enables you to see, organize, and work with all of your email, all of your attachments, all of your files and documents from within a single interface. There's no more alternating back and forth between your email program and Windows Explorer while working on individual activities.Starting Price: $44.95 one-time payment -
45
Edison Mail
Edison Software
We spend most of our time in mail, often reading about innovation and productivity. Somewhere along the way, mail got lost. So, we set out to build the best mail experience in the world for mobile. Get organized with categories. The app's assistant will automatically categorize messages for you to make it easier to find. Like peanut butter and jelly, some things go together. Get alerts for flight status changes including delays, cancellations and gate changes. Monitor the price protection window on recent purchases and get notified if the price drops. Get the forecast for my upcoming trips in the assistant to help me pack. Get notified when packages are out for delivery, and view details right in the assistant. Newsletters and mailing lists you don't read and may want to unsubscribe from. Surface directions to the airport for your next flight or your hotel for quick one tap access. -
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Zuitte
Zuitte
50+ powerful tools that help everyday entrepreneurs run and grow their businesses from one convenient location. Master the essentials and without breaking the bank! Zuitte offers a full stack of software designed specifically for modern entrepreneurs to help run and grow your business from one convenient app. Zuitte software is purpose built for dropshippers, Amazon FBA sellers, YouTubers, social influencers, freelancers, and everyday entrepreneurs for mastering the business essentials without breaking the bank. Zuitte combines the core functionality of all your favourite apps into one place to make growing your business easier than ever. Build and connect your messenger bot to Zapier for advanced automation, send emails from your own unique mail servers, view SimilarWeb enhanced analytics on market leading competitors and more! Grow, market, and manage your business without the hassle of multiple logins and excessive monthly fees.Starting Price: $79 per month -
47
Fastmail
Fastmail
Email you can feel good about. features you’ll love. You get 100% of our efforts and expert support when you need it. Email holds the details of your life. Here, your story is protected, not monetized. Thoughtful and speedy email, calendars, and contacts; all ad-free. Built with you in mind, you’ll love our intelligent features. Internet companies use your data as a way to get rich. But it doesn’t have to be this way. Take back your privacy and get a better email experience. With your email on your side, you spend more time doing what you love. Use Fastmail in your web browser, on mobile devices, and on desktop apps (Outlook, Thunderbird, Mac Mail). Breeze through your day with email, calendars, and contacts all in one app. Seamlessly import your data. Keep your life organized with a full-featured inbox. Bring all your calendars together. Share with your favorite people. Use your custom domain, and own your email address forever.Starting Price: $3 per user per month -
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Mailbird
Mailbird
Mailbird is a fast, modern email client for Windows and macOS, trusted by millions with over 4 million downloads. It brings all your accounts—Gmail, Outlook, iCloud, IMAP, Exchange—into one unified inbox with smart features like Snooze, Undo Send, Quick Reply, Send Later, email snippets, and drag-and-drop organization. Customize your workspace with themes, custom avatars, and flexible layout options. Stay productive with sidebar integrations for Google Calendar, WhatsApp, Slack, Trello, Asana, and more—no app switching needed. Built natively for each platform and optimized for both Windows 11 and Apple Silicon, Mailbird delivers speed, simplicity, and seamless control. Available in a Free version with an optional Premium upgrade. Backed by top-rated customer support.Starting Price: Free -
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Zimbra
Synacor
Zimbra 9 : Extensibility for Collaboration Superheroes! Users move seamlessly between desktop, mobile and tablet browsers with a consistent email and collaboration experience. Designed for extensibility and features best- in-class, out-of-the-box integrations with Slack, Dropbox and Zoom, with many more underway. Zimlet framework and APIs let you customize Zimbra to meet your specific requirements. Zimbra’s dependable server infrastructure for the security, privacy and data sovereignty Zimbra customers expect. Expect an easy upgrade process moving to Zimbra 9 — with no data migration. Zimbra 9's modern, responsive UI is built on Zimbra's dependable server infrastructure for the security, privacy and data sovereignty you expect from Zimbra. Unlike competitors with closed platforms, Zimbra 9 is flexible and extensible. Break free from Microsoft and Google and integrate with the 3rd party collaboration services you use today—Slack, Zoom, Dropbox and more.Starting Price: Varies -
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Unibox
eightloops GmbH
Unibox is a people-centric email client that organizes your messages by sender. The contact list on the left is sorted by the date of the last email and each person is displayed only once. Selecting a contact displays all messages that you exchanged with that person, similar to chat applications or smartphone SMS apps. Seeing all emails you exchanged with a person in one list lets you concentrate on the actual communication with that person, which feels much more natural. If you need to look at a specific conversation, possibly with multiple participants, Unibox lets you easily drill down into a thread view by clicking the button next to the subject. Unlike other email clients Unibox displays attachments not only as part of the message but provides you with two additional views containing all files that you exchanged with another person.
