On 30/07/10 13:22, Rudi Ahlers wrote: > Sorry about the previous post, I see the subject had a typo. So here's > the correct one :) > > > > Does anyone know how to configure Postfix to use SMTP authentication > on a relay host? > > i.e. I have a Linux server, running PostFix on an ADSL line with a > dynamic IP. Thus I can't just send out emails from this server but > need to relay it via our ISP's SMTP server, which is very unreliable. > Now I want to relay the email via another SMTP, running cPanel server > where a user account with the same domain has already been setup, but > I got no idea how to get it to work on SMTP authenticiaion. > > Any suggestions? > Try reading: http://wiki.centos.org/HowTos/postfix_sasl http://www.postfix.org/SASL_README.html http://postfix.state-of-mind.de/patrick.koetter/smtpauth/ and references therein. Hope that helps.