[Dovecot] Homedir for sieve/LDAP

[Edgar Fuß]

> It doesn't matter if Dovecot's home directories are different from the
> users' primary home directories. It's probably even better if they're
> different.
Yes, I thought so.

> http://wiki.dovecot.org/VirtualUsers#homedirs should apply to your use
> case as well.
Yes, I read that one. But I couldn't figure out from that how to set home with userdb ldap.