There are 5 repositories under apple-mail topic.
Email tracker, read receipt and spy pixel blocker plugin for macOS Mail (10.11-13.x)
:whale: :wrench: Provides Autodiscover capabilities for IMAP/POP/SMTP/LDAP services on Microsoft Outlook/Apple Mail and Autoconfig capabilities for Thunderbird
Quoting Outlook style headers and Signatures for Mail.app
📨 One-liners for installing HTML signatures.
Spam filter for Apple's Mail.app
Email tracker, read receipt and spy pixel blocker Mail extension for macOS
📨 Apple Mail HTML signatures made simple
Bitmessage docker container with IMAP and SMTP interfaces. To be used with Thunderbird or Apple Mail.
A simple app to save a little time when installing an HTML signature in Apple Mail.
EmailSmurfer - Extract email addresses from email header on Apple Mail (OSX)
Migration app for Apple's Mail.app to Simplenote note-storing service
Autodiscover email configuration for popular email clients
A Java library for looking up published mailserver configurations for clients for a given domain.
Parse & extract Mail app (Mac OS) emails & save to structured CSV or JSON
Applet to create events in iCal from Mail messages
Popclip extension to open Airmail URLs in Apple Mail
Latest version of GPGMail for macOS without DRM.
Convert your designed HTML into a beautiful Apple Mail signature.
An Apple Mail extension for GPG-based encryption and signing