I have installed ISPConfig 2.2.11 . It seems that the .forward function does not work. I also do not see errors in /var/log/mail.err The .forward is as follows (and as expected): "|/usr/bin/procmail -f-", [email protected] I'm hosting another domain where this same user is forwarded to this particular account. Maybe it's because it's on the same ISPConfig server, but the .forward for that account points to [email protected] Update: the forward from the secondary account to the primary account (and then to the external account) also does not work. Any ideas what may be the problem?