On Sat, Sep 11, 2010 at 01:01:19PM +0800, Richard Chapman wrote: > Thanks to everyone who has helped with this. There are several of you nd > your help is much appreciated. > My recent posting on the "trust" issue with the google certificates is not > sorted - but is a red herring as far as this issue is concerned. > I think I have it sorted - or at least working so far. > > Here s the relevant main.cf section: > > # 8/9/2010 Here is a block I am adding to try to get the postfix server to > # relay through smtp.gmail.com to keep the google apps sent email > consistent. > # > smtp_tls_security_level = may > smtp_sender_dependent_authentication = yes > # sender_dependent_relayhost_maps = hash:/etc/postfix/sender_relay > smtp_sasl_auth_enable = yes > smtp_sasl_security_options = noanonymous, noplaintext > smtp_sasl_tls_security_options = noanonymous > smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd > relayhost = smtp.gmail.com:submission
That should probably be: relayhost = [smtp.gmail.com]:submission I don't think that "smtp.gmail.com" is intended to be an MX RRset. -- Viktor.