Acording to this : smtp_sasl_password_maps (empty) Optional Postfix SMTP client lookup tables with one username:password entry per remote hostname or domain, or sender address when sender-dependent authentication is enabled.
http://www.postfix.org/postconf.5.html#smtp_sender_dependent_authentication smtp_sender_dependent_authentication (default: no) Enable sender-dependent authentication in the Postfix SMTP client; this is available only with SASL authentication, and disables SMTP connection caching to ensure that mail from different senders will use the appropriate credentials. On Fri, Dec 14, 2012 at 2:49 AM, SFX Group <cont...@ashleygriffin.ca> wrote: > Hi > > I have never used Postfix, i am a network specialist and understand the > methods of SMTP (i deploy Exchange server regularly), I have a Zimbra ZCS v8 > server (testing it), i understand it uses postfix, however its not in the > default location (its loaded its own one in the zimbra folder). Whats the > best software to GUI admin this (Postfix admin?) > > By default this will only receive and send mail end to end (i have not > enabled any relay to another SMTP server inside Zimbra). > > What i need to do as set the MTA to look at the from address (when sending > email from this MTA) then use a relay SMTP server based on the "from" > address (sometimes with or without username / password). However all other > addresses not listed needs to send end to end (from the MTA directly, not > through a relay). > > I was going to try and use: > > relayhost = > sender_dependent_relayhost_maps = <relayhost file> > smtp_sasl_password_maps = <password file> > > <relayhost_file> > m...@gmail.com [smtp.gmail.com] > m...@aol.com [smtp.aol.com] > m...@aol.com [smtp.aol.com] > m...@domaina.com [smtp.domaina.com] > > > <password_file> > m...@gmail.com username:password > m...@aol.com username:password > m...@aol.com username:password > > > My understanding is the password file can be specific about the user needing > authentication as i will have more than one FROM in the same domain meaning > different username and passwords for the same relay domain name (the above > shows aol.com) domaina.com also doesnt need a username / password to relay > mail (it uses the FROM address) > > However i need anything else that postfix is trying to send if its not > listed in relayhost_file then it should attempt to send this directly (end > to end) and not use any relay. > > Is this possible? > I have access to main.cf, however its in a zimbra specific location so i > assume they have hybrid most of the postfix system. > > > Many Thanks > Ashley > > > > -- > View this message in context: > http://postfix.1071664.n5.nabble.com/Postfix-used-as-End-to-End-and-relaying-to-external-SMTP-server-based-on-FROM-address-possible-tp53191.html > Sent from the Postfix Users mailing list archive at Nabble.com.