The 11 Most Popular macOS Mail Add-Ons Menu Lifewire Tech for Humans Newsletter! Search Close GO Email, Messaging, & Video Calls > Email
The 11 Most Popular macOS Mail Add-Ons
Use these popular add-ons to extend your mail capabilities in macOS
By Heinz Tschabitscher Heinz Tschabitscher Writer University of Vienna A former freelance contributor who has reviewed hundreds of email programs and services since 1997. lifewire's editorial guidelines Updated on July 26, 2021 Reviewed by Jessica Kormos Reviewed by Jessica Kormos Saint Mary-of-the-Woods College Jessica Kormos is a writer and editor with 15 years' experience writing articles, copy, and UX content for Tecca.com, Rosenfeld Media, and many others. lifewire's editorial guidelines Tweet Share Email Tweet Share Email Email Yahoo! Mail Gmail Apple Mail comes equipped with everything you need in an email client, but superusers may want enhanced features. Mail add-ons offer advanced labels, simplified interfaces, new message notifications, versatile filters, enhanced security, artful stationery, and more. Here are the most popular Mac Mail add-ons. Information in this article applies to the Mail app in macOS Catalina (10.15) and later, macOS Mojave (10.14), macOS High Sierra (10.13), and macOS Sierra (10.12), as indicated. 01 of 11 MailSuite
What We Like Contains four plug-ins. Has a good installation tool. Have the option to add some or all plug-ins. What We Don't Like Relatively expensive. When the software upgrades, a new subscription fee is necessary. Poor documentation. MailSuite includes four powerful components: MailTags, Mail Act-On, Mail Perspectives, and SigPro. With these components, you can add tags, keywords, notes, and due dates to emails in macOS Mail. The MailTags component integrates tags with search, rules, smart mailboxes, Calendar, Reminders, and project-management software for near-perfect and semiautomatic custom email organization. MailSuite includes Act-On, a Mail plug-in that saves time with keyboard shortcuts. You can set up shortcuts for labeling, moving, or redirecting messages. Mail Perspectives offers a customizable compact window design that keeps your most important email visible but not in your face as you work. With SigPro, you create a signature one time and then customize it by calling a script. MailSuite costs $60. It is compatible with macOS Big Sur, macOS Catalina (10.15), macOS Mojave (10.14), macOS High Sierra (10.13), and macOS Sierra (10.12). Download MailSuite 02 of 11 Mailbutler
What We Like The plug-in bundle has a separate tab in Mail preferences. Adds an avatar to messages to identify senders quickly. Schedules outgoing messages. Has Undo Send feature. What We Don't Like The free account is limited to 30 actions per month. Doesn't support OneDrive. New buttons make Mail look cluttered. The MailButler Mail extension is a Mail productivity suite that includes tracking, signatures, and scheduling features. MailButler quickly turns emails into tasks and reminders. With MailButler, you can make templates from your frequently sent email messages to save time and generate follow-up reminders so that you don't forget important opportunities. Mailbutler offers a 14-day free trial and three plans, one of which is free with limitations. MailButler works with macOS Big Sur, macOS Catalina (10.15), macOS Mojave (10.14), macOS High Sierra (10.13), and macOS Sierra (10.12). Download Mailbutler 03 of 11 MailSteward
What We Like Archives email in a relational database on the Mac. Powerful search feature. Robust and reliable. What We Don't Like Frequent updates require additional fees. Cluttered interface. Use MailSteward to place years of email in a secure, searchable archive to keep your Mail inbox clean. MailSteward offers a speedy and multi-option search feature to find what you need when you need it. A free 15,000-email archive version is available, as are paid upgrades for bulk users. MailSteward Lite costs $24.95 and includes archiving for up to 100,000 messages. Two additional plans are available for power and enterprise users. MailSteward is compatible with Mail in macOS Big Sur, macOS Catalina (10.15), macOS Mojave (10.14), macOS High Sierra (10.13), and macOS Sierra (10.12). Download MailSteward 04 of 11 SpamSieve
What We Like Outperforms Mac Mail junk filters. Few false positives. Reduces spam at installation and more after training. What We Don't Like Daunting setup. Not as user friendly as it could be. SpamSieve delivers superior Bayesian spam filtering to the Mail app. It's as easy to use as the Apple Mail junk-mail filters and can give you statistics you may find informative. It works with any email provider on your Mac. SpamSieve features include: Color coding that indicates the spam level of each message.Customizable safelist and blocklist.Runs on a Mac and keeps spam off iPhone and iPad.Integrates with the macOS Contacts app.Notifies you only for the receipt of non-spam emails. A free trial is available. The paid version is $30. Compatible with macOS Big Sur, macOS Catalina (10.15), macOS Mojave (10.14), macOS High Sierra (10.13), and macOS Sierra (10.12). Download SpamSieve 05 of 11 Mail Designer 365
What We Like Builds responsive emails. Live previews on multiple devices. No coding needed. What We Don't Like Expensive, subscription-based software. Spotty tech support. Mail Designer 365 is a subscription-based app that makes it easy to add professionally designed templates to emails in macOS. With templates and custom tools, it affords the casual and serious designer or marketer plenty of control and flexibility. Additionally, Mail Designer 365 integrates with Unsplash to provide access to thousands of license-free images. A 7-day free trial is available. The cost for a basic Business plan is $30 per month per person, with annual discounts and Business Premium and Business Enterprise plans. Mail Designer 365 works on macOS Big Sur, macOS Catalina (10.15), macOS Mojave (10.14), macOS High Sierra (10.13), and macOS Sierra (10.12). Download Mail Designer 365 06 of 11 GPG Suite
What We Like Reliable OpenPGP encryption. Adds a lock button and a sign button to outgoing emails. Integrates seamlessly with macOS Mail. What We Don't Like The free version is no longer available. Slow to update for new OS versions. GPG Suite is a complete email encryption service that includes a macOS Mail plug-in. It lets you sign and encrypt, verify, and decipher in-line and OpenPGP/MIME messages comfortably and flexibly. You can also use it to create and manage OpenPGP keys and import your colleagues' keys. The free GPG Suite download includes a 30-day trial of GPG Mail. After 30 days, GPG Mail costs $23.90. GPG Suite is compatible with macOS Catalina (10.15), macOS Mojave (10.14), and macOS High Sierra (10.13). Download GPG Suite 07 of 11 MsgFiler
What We Like Robust keyboard-based email filing. Fast search capability. Customizable interface. What We Don't Like No filing suggestions. Complicated installation process. MsgFiler makes moving messages easy. It includes a folder selector that finds the mailbox you're looking for with a few typed characters. Simply type to filter down a list of mailboxes. Navigate Mail or move messages around without leaving the keyboard. MsgFiler is available at the Mac App Store for OS X. For macOS, go to the developer's website, download two files, and follow the instructions to install the plug-in. The cost of MsgFiler is $9.99. MsgFiler works with macOS Big Sur, macOS Catalina (10.15), macOS Mojave (10.14), macOS High Sierra (10.13), and macOS Sierra (10.12). Download MsgFiler 08 of 11 MailHub
What We Like Send Later feature. Filing suggestions. Reminders for email actions. What We Don't Like No Catalina version and no announcement one is coming. MailHub is a smart assistant for the Mail app. It learns as you work and auto-suggests possible filing locations. Use it to set reminders on emails for follow-up later. A Send Later feature allows you to schedule a date and time to send an email. MailHub is compatible with Mail in macOS Mojave (10.14), macOS High Sierra (10.13), and macOS Sierra (10.12) MailHub offers a 30-day unrestricted free trial. The price is $19 for a single user, $49 for a five-user license, and $89 for a 10-user business account. Download MailHub 09 of 11 Letter Opener
What We Like Converts winmail.dat files on the fly. Install and forget. It just works. Good support. What We Don't Like Yearly subscription. Additional charges for upgrades. No Catalina version. Winmail.dat files can be a nuisance because these files prevent some users from opening email attachments accurately. Letter Opener for macOS Mail handles winmail.dat attachments as if it invented them, making included files and rich formatting available just like other attachments. Letter Opener offers a 14-day free trial and costs $29.99 per year. Letter Opener is compatible with macOS Big Sur, macOS Catalina (10.15), macOS Mojave (10.14), macOS High Sierra (10.13), and macOS Sierra (10.12). Download Letter Opener 10 of 11 Email Archiver Pro
What We Like Fast email archiving. Archive all email or specific folders. PDF of each email includes attachments. What We Don't Like Can't search the archive by date range. No Catalina version. Email clients aren't always great catalogs for the messages you've sent over the years. Sometimes you need a dedicated archive service to keep a record of your emails. Email Archiver Pro saves messages from macOS Mail as PDF files, including all layouts, headers, and attachments. With Email Archiver Pro, PDF archives are easily searchable and accessible. Email Archiver Pro Personal edition costs $39.99. Business and enterprise plans are also available. Email Archiver Pro is compatible with macOS Mojave (10.14), macOS High Sierra (10.13), and macOS Sierra (10.12). Download Email Archiver Pro 11 of 11 Ofaco
What We Like Fast auto-completion based on email content. Customizable with your frequently used text. Free plug-in. What We Don't Like No Catalina version. Ofaco—short for old-fashioned completion—is an auto-completion service that bases its recommended words on text from the message window, rather than text from the macOS dictionary. This makes for a more contextually relevant auto-completion function. Ofaco works with Mail in macOS Big Sur, macOS Mojave (10.14), macOS High Sierra (10.13), and macOS Sierra (10.12). The Ofaco plug-in is free. Donations are accepted. Download Ofaco Was this page helpful? Thanks for letting us know! Get the Latest Tech News Delivered Every Day Subscribe Tell us why! Other Not enough details Hard to understand Submit More from Lifewire How to Update Your MacBook Pro What Is macOS? How to Resend a Message in macOS X Mail macOS Mail: How to Keep Emails on the Server How to AirPlay From a Mac to a TV How to Update Your MacBook Air Laptop How to Block Email Addresses in macOS Mail How to Update a Mac How to Activate the iPhone Debug Console or Web Inspector How to Install MySQL on macOS How to Uninstall Chrome on Mac How to Change Mouse Speed or Sensitivity 10 Best Free Email Accounts for 2022 How to Reset MacBook Air How to Back Up iPhone 5 How to Add Strikethrough Text in macOS Mail Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. Cookies Settings Accept All Cookies