Jan L?hr: > virtual_alias_domains = v50993.topnetworks.de > virtual_alias_maps = ldap:/etc/postfix/ldap-aliases.cf
v50993.topnetworks.de is listed in virtual_alias_domains. Therefore, all users in that domain must exist virtual_alias_maps as u...@v50993.topnetworks.de. See also: http://www.postfix.org/ADDRESS_CLASS_README.html http://www.postfix.org/VIRTUAL_README.html http://www.postfix.org/DATABSE_README.html > client-error: > rcpt to: j...@v50993.topnetworks.de > 550 5.1.1 <j...@v50993.topnetworks.de>: Recipient address rejected: User > unknown in virtual alias table Keep testing until this: postmap -q j...@v50993.topnetworks.de ldap:/etc/postfix/ldap-aliases.cf returns an email address. Wietse