[gentoo-server] Virtual Mailhosting with Postfix

[Peter Eis]

Hi,

I set up a new mail server according to the 'Virtual Mailhosting System
with Postfix Guide'.

Almost everything is working like expected but still I got to issues (at
least for now):
1. the passwords are stored cleartext in the sql database
  - how can I configure the system to use encrypted (MD5) passwords, as
    that would make it possible to transfer all users from the old mail
    server (RH) to the new one without the hazzle of distributing new
    passwords to the users
2. TLS authentication
  - if I use the eMail address as account name the authentication is not
    working. The problem is that postfix (?) only reads the account name
    until the '@' character. So for now I changed usercolumn=email to
    usercolumn=uid but it would be nice to be able to use the email
    address instead as usually the users don't know their uid.

Cheers,
Peter