From now on, when a user, or administrator set a password, it will be crypt-ed using MD5 (the same format found in /etc/shadow). Older crypt-ed password will still work.
vimap was not tested. Please check it all. Since vpop3d did not need any change, things should be fine ... :-)
This change provides better password crypt. The previous format was only using the first 8 characters of the password. Also you can move accounts from the main domain to vdomain without reentering the passwords.