mail app

Quoting headers like Outlook and signatures in Mail.app.

Faster Mail.app spell checker.

Notification plugin for Mail.app.

Speed up Mail.app.

Export new Mail.app message to iCal calendars.

Export Mail.app message to iCal ToDo list.

IMAPCheck is a bundle for Mail.app

Plugin for Mail.app takes advantage of widescreen monitor.

Set email message priorities in Mail.app.

Mail plugin for OmniFocus.