> virtual_mailbox_domains = > proxy:mysql:/etc/postfix/mysql-virtual_domains.cf
1) What is a domain name that you have problems with? 2) What is the output of: postmap -q mysql:/etc/postfix/mysql-virtual_domains.cf domainname Where domainname is an answer to question 1) ? > virtual_mailbox_maps = > proxy:mysql:/etc/postfix/mysql-virtual_mailboxes.cf 3) What is the output from: postmap -q mysql:/etc/postfix/mysql-virtual_mailboxes.cf username@domainname Where domainname is the answer from 1), and username is a user that is rejected as "user unknown in virtual mailbox table"? You may anonymize the username so that spammers won't pick it up. Wietse