Hello, i look for an email client that must: 1) have automatic filters to run external command line programs that take attachments and message text as input. 2) attach a small text note to the message and search this notes for simple text strings. 3) let me store a message in multiple folders. 4) handle multiple accounts (5 at least) and be able to store at least 50000 messages. 5) provide good backup & restore functionality. Anything like this available ? EMail is my most important application and i want to switch my internet office computer to a MacMini but i can't if one of the 5 points is not there. TheBat my windows email client supports all the 5 since 1998.