Werner Schalk: > Dear all, > > I am running Postfix and Mailman on my server with MySQL as backend. It > works like a charm (including mailman) but for one domain (customerA.com) > the following error message is generating when the admin user maintains a > list and an email is being generated (e.g. when adding/removing a member): > > Mar 6 18:12:46 localhost postfix/smtpd[23391]: NOQUEUE: reject: RCPT from > localhost[127.0.0.1]: 550 5.1.0 <mailman-boun...@customera.com>: Sender > address rejected: User unknown in virtual mailbox table; > from=<mailman-boun...@customera.com> to=<ad...@somedomain.com> proto=ESMTP > helo=<[127.0.0.1]>
As described in (among others) VIRTUAL_README.html: 1 - The sender address must exist in virtual_alias_maps. 2 - The virtual_alias_maps must rewrite this address into an address in a different domain. You need to find out which of the two requirements is not satisfied. Wietse