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.
