Cooper, Robert A: > virtual_alias_maps = ldap:/etc/postfix/tamu.ldap As documented, 'not found' means 'do not replace the address by its alias expansion'.
If you must REJECT a name that has no LDAP, then you MUST also specify
virtual_alias_domains = tamu.edu
For more on virtual_alias_maps and virtual_alias_domains see
http://www.postfix.org/ADDRESS_CLASS_README.html
Wietse
