Postfix can't deliver mail to virtual domains - cannot create file exclusively

[Volker Kindermann]

Hi Pat,

Pat Maddox wrote:
> By the way, the problem appears to be solely permissions-based.  When
> I've got normal-looking permissions on /var/mail, postfix gives that
> error, "cannot create file."  Courier-IMAP says, "imapd: chdir
> javaspot.net/pergesu: No such file or directory"  chmod 777 /var/mail
> and they both work fine.  But that's of course not the permissions I
> want on it.

I have postfix with virtual Maildirs and courier imap set up, too.

Here's the relevant part of my main.cf:

virtual_mailbox_base = /home/vmail
virtual_uid_maps = static:600
virtual_gid_maps = static:600

The directory /home/vmail is owned by the vmail user (id 600). With the 
virtual_uid_maps setting postfix uses this user for writing to the 
directories.

In courier, you are also able to define this user:

/usr/local/courier-imap/sbin/userdb "<domain>/<user>@<domain>" set 
home=/home/vmail mail=/home/vmail/<domain>/<user> uid=600 gid=600

With these settings everything works well.


  -volker