I was trying to follow the instructions found here to set up a catch-all account, but still I get the following message for mails sent to non-existent users:
The error that the other server returned was: 550 550 5.1.1 firstname.lastname@example.org... User unknown (state 14).
Everything else works, though...
/etc/mail/virtusertable were set up as instructed. Any advice? Thanks!