Mulberry is no more. The folks at ISAMET/Cyrusoft have filed for Chapter 7 bankruptcy. Mulberry probably utilized more IMAP features than any other client with the possible exception of Pine but it certainly used the most features of any GUI client. While Thunderbird was my primary mail client, Mulberry’s single-key ease of use let me breeze through my mailboxes. True, I still have the program but the source is locked up and it looks like there will be no more updates.
Aloha.