Alternatives to Postbox
Compare Postbox alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Postbox in 2026. Compare features, ratings, user reviews, pricing, and more from Postbox 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.Starting Price: $6.99/user/month -
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
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 -
4
Aqua Mail
MobiSystems
The most customizable email client for Android. Over 300 settings for full customization. Sync your Exchange contacts and calendar. Format emails with our rich text editor. Rest your eyes with our dark theme. -
5
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 -
6
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. -
7
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 -
8
Thunderbird
Mozilla Foundation
Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features! Thunderbird makes email better for you, bringing together speed, privacy and the latest technologies. Focus on what matters and forget about complexity. Multiple features, such as built-in Do Not Track and remote content blocking, work together to ensure your safety and privacy, so you can have peace of mind. With Add-ons (Extensions & Themes) and many more features you can change the look and feel of Thunderbird in an instant. Organize your schedule and life’s important events in a calendar that’s fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars. Thunderbird is an open source project, which means anyone can contribute ideas, designs, code, and time helping fellow users. -
9
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 -
10
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 -
11
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 -
12
Kiwi for Gmail
Kiwi for Gmail
Kiwi enhances Gmail and makes Google Apps like Docs, Sheets and Slides work together seamlessly like a full-featured desktop office productivity suite. Use Gmail and Google's office suite outside the browser as a standalone application with powerful enhanced features. Gmail's a powerful application. The browser is a general-purpose tool. If you need to do serious work, here is your edge. Distinct from what Gmail uses in the browser, we designed a powerful engine that allows multiple accounts to be used together with 100% fidelity and no conflicts. It works with Google Drive, Docs, Sheets, and Slides as well. Redefine your inbox on the fly to see what's come in today, or the past 2 days, or past week. Further whittle those down to only emails marked Important with Google AI, Unread, Attachments and Starred. Combine them to keep your inbox limited to a short list of your most relevant emails. Need to see your other emails? All it takes is a click to mix it up or turn it off.Starting Price: $29.99 per year -
13
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 -
14
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 -
15
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 -
16
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 -
17
Shortwave
Shortwave
Email connected the world, but it lost its magic along the way. We believe it deserves better, and we're on a mission to bring email up to speed (literally) with modern messaging apps. Email should prioritize people, not advertising. Getting through your inbox shouldn't require busywork, and sending an email should be as fast as typing a text message. That's why we're building Shortwave: to recapture the magic of email with a beautifully designed product that works for everyone. Create channels to keep your team on-topic and make past conversations searchable. Instant delivery, typing indicators, and emoji reactions make conversations with other Shortwave users come to life. Use @-mentions to push notify the right people when you need them to join in. Shortwave connects to your existing Gmail account. Sign in today to get your inbox organized in minutes. You'll have the option to invite your teammates later. -
18
Zoho SalesInbox
Zoho
Turn unopened emails into closed deals with the only email client built exclusively for salespeople. The first email client built exclusively for salespeople. The most recent email isn't always the most important. Especially in sales. You need to stay on top of the deals that are most likely to turn into revenue. A traditional email client won't help you do that. But SalesInbox will. SalesInbox automatically prioritizes and organizes your emails according to the deals that matter most to you. See more -and do more- right from your inbox. Have your mailbox reflect your sales pipeline and your emails organized according to sales priorities, so that you stay on top of deals that matter the most. For better communication, you need better context. Know every detail about your customer to get a clearer picture and craft better responses. Get alerts for follow-up activities and notifications about the conversations that matter most. Follow-up faster and also automate the process. -
19
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 -
20
Helpwise
Helpwise
Shared Inbox for your Team Email, SMS & WhatsApp accounts. Sharing email account login among team members is not scalable. Helpwise is an easy to use shared inbox for your team email accounts like help@, sales@, jobs@ etc. As business grows, it becomes a struggle to manage customer, sales or internal emails (billing, hiring) across the company. And, then we make a blunder by sharing email logins among team members. We understand the chaos that it creates because we have been through the same pain during our previous gigs & businesses. So, this is exactly why we built Helpwise - the shared inbox that really works! We all love Gmail, Outlook & other awesome email clients. So, we have made sure that Helpwise feels as easy as these common email services. Basically, you won't miss them here. Every team member will get own separate login to access same email address. So, no more password sharing. Better security with higher productivity! -
21
Taurin
Taurin
Auto-segmentation, smart filtering, AI auto-complete, and built-in CRM. Stop wasting time on repetitive tasks. Manage contacts with custom properties. Adapt to any scenario, from sales to marketing and recruitment. Simplify your email experience with Taurin. This tool organizes your inbox, provides summaries, and enriches your contact database. With Taurin’s autonomous features, you’ll spend less time managing emails and more time building meaningful connections. Email isn't going anywhere, but how we handle it needs to evolve. With remote work becoming the norm and digital communication exploding, we need smarter tools to manage our interactions. Taurin isn't just another email client, it's your personal email intelligence partner. Smart AI that intelligently organizes your emails. Rich contact insights that give you the full picture. Lightning-fast AI writing assistant with auto-summarize and auto-complete. Built-in CRM to keep all your relationships organized. -
22
Snoozz
Snoozz
Declutter your browser by snoozing tabs and windows until you actually need them. Snoozz tabs and Windows now and have them reopen automatically later. There's no limits on what you can snooze. The entire extension is ~130kb, about half the size of this snail. Pixel-perfect curated icon packs to mix things up. Lots of features lined up for 2022 and beyond. Configure keyboard shortcuts and context menu options to snooze tabs even quicker. None of your data is transmitted anywhere, and the extension is entirely self-contained. View your currently sleeping and already awoken tabs in the nap room. -
23
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 -
24
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. -
25
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 -
26
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 -
27
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 -
28
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 -
29
TypeApp
TypeApp
Keep your inbox tidy, by having a single entry for those newsletters and machine generated emails. TypeApp will aggregate all emails from those services automatically, with a service name and avatar. When you reply to emails or people reply to you, TypeApp creates conversations with both Sent and Received emails. Extending a conversation to new members will create Linked Conversations granting you full visibility to all emails. With unlimited accounts from all providers and protocols, you can manage all of your emails with TypeApp, and oversee all email activity at a glance. Move easily from Unified Inbox to a specific account, between accounts, and select folders and filters with the Picker. Get instant notifications for your new emails, using your Tablet, Phone or Watch for Android or iOS. Customize quiet hours to match your lifestyle. -
30
Canary Mail
Canary Mail
Email, meet AI. Canary can write your emails, prioritize what needs attention, silence spam & much more. Say hello to your Inbox Copilot!Starting Price: $20/month -
31
Hiri
Hiri
An incredibly easy way to manage your inbox. Built for the Microsoft email ecosystem. We also support: outlook.com, hotmail.com, live.com and msn.com. Email doesn’t have to be ugly. A cluttered inbox is like a cluttered desk - it makes it difficult to get in the right headspace. We’ve used the UX principle of progressive disclosure throughout Hiri so you only see what you need when you need it. Good design is at the heart of what we do. For example, regardless of what resolution or what size monitor you use the center pane in Hiri will always remain the same width. This is because the optimum readable length of a sentence is about 96 characters. Any longer and it can be difficult to find the beginning of the next sentence. Any shorter and your eyes need to work harder, causing fatigue.Starting Price: $39 per year -
32
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 -
33
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 -
34
Pixelmost
Pixelmost
Create beautiful mockups and app designs with the help of AI, templates, and pre-designed components. Export as pixel-perfect images or real native apps. Users input prompts, which the app analyzes using natural language processing to understand context and intent. Create one or multiple pages just by entering a prompt. Also, get the name and color theming suggestions. Adjust margins, paddings, colors, imaging, icons, or corner radius, and get the design you want. A modern full AI-powered toolkit for startups, designers, and companies. Create beautiful mockups with predesigned templates, icon sets, and components. Use our advanced AI features to get inspired. Generate a project name, color theming, or even full app design. With Pixelmost, you can always get a high-end professional look and feel. Use ready-made beautiful components. Or customize and create one yourself. Reuse styles and colors to get that exact design you strive for; and with AI you always have inspiration close by.Starting Price: $7 per month -
35
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. -
36
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 -
37
Chaos Intellect
Chaos Software
Chaos Intellect: Business email software and CRM contact management done right! If you haven't heard of Chaos Intellect before now, you've missed out! We have years of experience making great contact management CRM software, as featured in our award winning contact manager called Time & Chaos. Chaos Intellect combines this powerful contact manager experience with a great email client that hits the sweet spot for users like you! Why should you choose Chaos Intellect? We have two ways to answer that for you: on the left, you can view our features, organized by whether you are a Casual User, Business User or Advanced Power User. On the right, we let other users provide their own testimonials of how Intellect has worked for them. Keep reading for more details! Once you see enough to convince you to try it, keep in mind we have a fully-functional trial version you can download with no missing features and no hassles. We want you to see it work in the real world without any guessing!Starting Price: $59.95 per user -
38
BlackBerry Hub+
BlackBerry
Up your game with BlackBerry apps on your Android phone. Give your phone a productivity boost from BlackBerry®. Whether it’s integrating all your messages and social notifications into one place or giving you a really smart Calendar, BlackBerry makes sure doing stuff on your Android™ phone is effortless. Keep organized with BlackBerry® Hub+ Inbox. Inbox consolidates all your email, calendar events and social notifications from apps like Facebook, WeChat, Twitter, LinkedIn and WhatsApp in one unified app. You can also sync your BlackBerry Hub+ Inbox with Wear OS by Google devices to receive notifications and respond directly from your watch. BlackBerry® Hub+ Calendar allows you to schedule appointments and create events with ease. Use the Agenda, Day, Week, or Month view to quickly glance at your events and respond to meeting invitations directly from the BlackBerry Hub+ Inbox. You can also call into meetings directly from your event reminder with just one tap. -
39
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. -
40
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 -
41
Mailplane
Mailplane
Manage all your Gmail, Calendar and Contacts accounts in Mailplane instead of cluttering up your browser window. All-in-one app with Apple-like keyboard shortcuts. No separate set-up required. Mailplane's notifier lets you know how many unread messages are in your inboxes, right from your Mac's menu bar. It also notifies you when new emails arrive. You can react directly by archiving a message or writing a quick reply. Navigate Mailplane at the speed of light. No matter if you want to jump to a label, tab, account, or bookmark. Search for messages simultaneously across all your Gmail accounts. Get your point across with fewer words using annotations and shapes. Mailplane integrates with other macOS apps in various ways. Third-party extensions enhance Mailplane. Fully localized in English, Japanese, German, French, Spanish, and Italian. Thanks to our loyal customer base, Mailplane has been around for ages. We love to continuously improve it for you!Starting Price: $29.95 one-time payment -
42
FairEmail
FairEmail
FairEmail is easy to set up and works with virtually all email providers, including Gmail, Outlook and Yahoo! FairEmail might be for you if you value your privacy. FairEmail is an email client only, so you need to bring your own email address. FairEmail does not support non-standard protocols, like Microsoft Exchange Web Services and Microsoft ActiveSync. Almost all features are free to use, but to maintain and support the app in the long term, not every feature can be for free. See below for a list of pro features. This app is deliberately minimalistic by design, so you can concentrate on reading and writing messages. This app starts a foreground service with a low priority status bar notification to make sure you'll never miss new emails. -
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Shoplift
Shoplift
Shoplift is a conversion rate optimization (CRO) platform built specifically for Shopify stores to simplify A/B testing and improve performance. Quickly launch split tests directly within your theme customizer or let Lift Assist™ auto-build experiments for you. Optimize product pages, product prices, landing pages, themes & more to boost conversion rate (CRO). Get clear analytics to improve conversions without the hassle. Run any AB test or split test without coding or developer resources. Simplify conversion optimization, understand shopper behavior & maximize your store's revenue with Shoplift. A/B test product pages, landing pages, collections, homepage, prices, and search Theme testing for rebrands, navigation optimization, and mini-cart conversion Audience segmentation & advanced analytics for RPV, AOV, CVR, CTR, and more Lift Assist auto-creates branded, pixel-perfect split tests - no coding needed Fast, seamless AB tests with optimized page speeds and zero page flickerStarting Price: $99/month -
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Microsoft Outlook
Microsoft
Microsoft Outlook is the all-in-one email, calendar, and contact management platform designed to keep you organized and connected across your digital life. With Outlook, you can manage multiple accounts—including Gmail, Yahoo, and iCloud—within one unified inbox. Intelligent scheduling tools and shared calendars help you stay on top of meetings, events, and personal reminders. The built-in Microsoft Copilot assists with writing emails, summarizing long threads, and managing tasks to boost productivity. Outlook also offers enterprise-grade security, filtering out spam, phishing, and malware to keep your data safe. Whether on desktop, mobile, or web, Outlook helps you manage communication and time with clarity and confidence. -
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HCL Notes
HCL Software
Integrate social collaboration, messaging and business applications into a single workspace. HCL Notes is the email client software that gives teams access to email, calendar, and contact management capabilities, and seamlessly integrates other collaboration tools and HCL Domino business applications. With an improved user experience and enhancement of essential mail features, HCL Notes transforms your everyday email into an operational center and becomes even more essential to how your team’s work. Integrate social collaboration, messaging and business applications into a single workspace with Notes. Now, with an improved user experience and enhancement of essential mail features. From leading logistics companies to powerful banks and fashion houses, thousands of the smartest businesses in the world rely on Notes to help run their everyday. -
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Dazzle
Dazzle
Dazzle is an AI‑powered ad creation and optimization tool that enables marketers, agencies, and creators to produce high‑quality, brand‑aligned digital ads instantly, no design or copywriting skills required. Users upload their product image and brand guidelines, and Dazzle automatically generates pixel‑perfect, on‑brand visuals with intelligently curated backdrops and themes tailored to their product category. It supports rapid scaling through auto-generated ad variations, multi‑format options optimized for platforms like Google, Meta, and TikTok, and features designed to combat creative fatigue with data‑driven insights and creative automation. Its browser‑based workflow, including a Chrome extension, allows intuitive ad creation and testing directly from your desktop, making it fast and accessible. Dazzle empowers growth teams and startups to elevate campaign performance with ease and speed, seamlessly blending creative generation with strategic optimization. -
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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 -
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MOLDIV
JellyBus
MOLDIV™, the best beauty selfie & video camera, all-in-one photo editor! With the motion graphics video camera, collage & magazine, perfect selfie for beauty camera, and professional photo editor, you can create awesome photos & videos on mobile. Collage your photos like a magazine, a poster, or a themed album. Combine up to 9 photos in a single frame. Collage your photos like a magazine, a poster, or a themed album.Starting Price: Free -
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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. -
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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