I need to add: testmail is not a local user. It is just an entry in the /etc/aliases (which is used as an addressbook for all users on the system). How do I tell exim to _only_ use domainnames instead of hostnames? I think that would solve my problem completely. Thanks, Rainer -- Rainer Dorsch Alzentalstr. 28 D-71083 Herrenberg 07032-919495 Icq: 32550367