Here are the most popular Mac Mail add-ons.
MailSuite
Contains four plug-ins.
Has a good installation tool.
Have the option to add some or all plug-ins.
When the software upgrades, a new subscription fee is necessary.
MailSuite includes four powerful components: MailTags, Mail Act-On, Mail Perspectives, and SigPro.
MailSuite includes Act-On, a Mailplug-inthat saves time with keyboard shortcuts.
you might set up shortcuts for labeling, moving, or redirecting messages.
With SigPro, you create a signature one time and then customize it by calling a script.
MailSuite costs $60.
Mailbutler
The plug-in bundle has a separate tab in Mail preferences.
Adds an avatar to messages to identify senders quickly.
Has Undo Send feature.
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.
Mailbutler offers a 14-day free trial and three plans, one of which is free with limitations.
MailSteward
Archives email in a relational database on the Mac.
Frequent updates require additional fees.
Use MailSteward to place years of email in asecure, searchable archiveto 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.
SpamSieve
Outperforms Mac Mail junk filters.
Reduces spam at installation and more after training.
Not as user friendly as it could be.
SpamSieve delivers superiorBayesian spam filteringto the Mail app.
It’s as easy to use as theApple Mail junk-mail filtersand can give you statistics you may find informative.
It works with any email provider on your Mac.
SpamSieve features include:
A free trial is available.
The paid version is $30.
Mail Designer 365
Builds responsive emails.
Live previews on multiple devices.
Expensive, subscription-based software.
Additionally, Mail Designer 365 integrates with Unsplash to provide access to thousands of license-free images.
A 7-day free trial is available.
GPG Suite
Reliable OpenPGP encryption.
Adds a lock button and a sign button to outgoing emails.
Integrates seamlessly with macOS Mail.
The free version is no longer available.
Slow to update for new OS versions.
GPG Suite is acomplete email encryptionservice 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 could 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.
MsgFiler
Robust keyboard-based email filing.
MsgFiler makes moving messages easy.
It includes a folder selector that finds the mailbox you’re looking for with a few typed characters.
Simply bang out to filter down a list of mailboxes.
Navigate Mail or move messages around without leaving the keyboard.
MsgFiler is available at theMac App Storefor OS X.
The cost of MsgFiler is $9.99.
MailHub
Send Later feature.
Reminders for email actions.
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.
Letter Opener
Converts winmail.dat files on the fly.
Additional charges for upgrades.
Winmail.dat files can be a nuisance because these files prevent some users from opening email attachments accurately.
Letter Opener offers a 14-day free trial and costs $29.99 per year.
Email Archiver Pro
Fast email archiving.
Archive all email or specific folders.
PDF of each email includes attachments.
Can’t search the archive by date range.
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 asPDF 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.
Ofaco
Fast auto-completion based on email content.
Customizable with your frequently used text.
This makes for a more contextually relevant auto-completion function.
The Ofaco plug-in is free.
