MailMate is an ambitious powerful email client for Mac OS X. It is designed for and only supports IMAP while still working in full when offline. MailMate has state-of-the-art searching capabilities and correspondingly advanced smart mailboxes. Extensive keyboard control and dynamic signatures ensure a highly efficient workflow when reading and answering emails. Alternative message viewer layouts and a browser-inspired design ensure easy and rapid access to related messages.
Full Specifications
What's new in version 1.13.2.5673
Fixed: Sent signed and/or encrypted messages were not uploaded to the Sent Messages mailbox.
Fixed: The "Open with" menu for attachments would make MailMate hang.