Ok I've given up and don't feel happy right now I try to get mail to [email protected] to get into the inbox of [email protected]. But not only that. I want it in the subfolder of info, namely info/user2. I use postfix with maildirs, so I thought let's try to write the mail to a file: /home/example.com/homes/info/Maildir/.INBOX.user2/new/ I get, using all means to prevent it: Jan 7 15:00:48 serv1 postfix/local: warning: maildir access problem for UID/GID=99/99: create maildir file /home/example.nl/homes/info/Maildir/.INBOX.user2/new/1199714448.P19079.serv1.example.com: Permission denied Jan 7 15:00:48 serv1 postfix/local: warning: perhaps you need to create the maildirs in advance Other option doesn't help as well: Jan 8 00:52:23 serv1 postfix/local: 998993EF398: to=<[email protected][email protected] ls -la /.../ total 8 drwxrwxrwx 2 info.example.com example.com 4096 Jan 7 13:25 . drwxrwxrwx 5 info.example.com example.com 4096 Jan 7 23:51 .. I've tried chown -R postfixostfix on the dir as well. Also chown -R 99:99, as I see that in the logs, the user is unknown. Maybe that is the problem? That user 99 in group 99?? But then, I set the most loose permission, still permission denied to create that file with the mail contents TIAA (again) !