SmallCubed MailSuite provides you with four handy components in a single Mail plugin. You can use MailTags to escape the constraints of folders and organize your messages by keywords, projects, importance, color, due dates and more. The Mail Act-Ons powerful keystroke rules and message filing interface gives you the ability to quickly take action on your e-mail. The Mail Perspectives helps you create a compact Perspective window for each of your critical mailboxes, while the SigPro module allows you to create a signature once and use it for all accounts.
Lightweight customizable mail client.
It copies Mail.app message properties to the clipboard for further saving.
It removes duplicate messages from the current selection in Apple Mail.
Trash mail duplicates moves duplicate messages to Mail trash.
Send delayed and repeated messages using a simple app.