Über dieses Add-on
- User would write a "message filter" to automatically set the message expiry time to 2 days for messages from anybody with title, for example "meetings today";
- User would have another message filter to set the expiry time for messages from a mailing list to 14 days;
- User would select a single message from other about. for example, Xmas gifts and set the expiry time to 1 month.