On Mon, Jun 24, 2013 at 09:54:55AM -0700, Scott Vanderbilt wrote: > I'm having difficulties configuring smtpd as a backup mail server. > smtpd is running on my main mail server and works a treat. (Good > riddance, sendmail.) > > I've read the man pages and understood them the best I can, and > tried various configuration options, all to no avail. Mails to known > valid users on the backup server continue to be rejected with 550 > responses. The goal, of course, is for this backup server to accept > these mails and relay them to the main mail server host. > > This is on 5.3-current with smtpd 5.3.3. > > Here is my smtp.conf (in its entirety): > > listen on all > > table aliases db:/etc/mail/aliases.db > table domains file:/etc/mail/domains > table secrets db:/etc/mail/secrets.db > > # Relay to main mail server via TLS > accept for domain <domains> relay via \ > tls+auth://f...@smtp.datagenic.com auth <secrets> > > accept for local alias <aliases> deliver to mbox > debug: smtpd: offline scanning done > debug: smtp: new client on listener: 0x81a09170 > smtp-in: New session 000000004aa75c26 from host > mail-la0-f48.google.com [209.85.215.48] > smtp-in: Failed command on session 000000004aa75c26: "RCPT > TO:<geo...@datagenic.com>" => 550 Invalid recipient > smtp-in: Closing session 000000004aa75c26 > debug: smtp: 0x85d02000: deleting session: done > > In this case, the recipient 'george' is a local user on the backup > server host. I cannot understand why the mail has been rejected in > this case.
It is rejected because your accept rules match local mails only. You need to specify 'accept from any' to receive mail from the outside. > I've also tried various options using 'relay backup' without > success. The man page does not give an example for backup servers. > So, I'm not sure how to proceed. "relay backup" is used to setup secondary mail servers for a domain, that is a server that accept mails for a domain and relay to MXs with higher priority (i.e. lower preference in DNS). > Many thanks in advance for any guidance you can offer. You're welcome. Eric.
