Hello I am relatively new to postfix (great product by the way) & am struggling with two issues.
1. Specifying a different Reply To 2. Bouncing a message back to external incoming mail I have setup postfix as a relay for our systems to send messages though which then get passed on to a central external mail server. All of the mail has to be sent as the same email address in order to be emailed using the central external server, I am doing address rewrites smtp_generic_maps to converting the internal incoming addresses to the single email address that all mail is emailed out with. However I only want to write the reply to if the message has come from certain servers Also external incoming mail is hitting the server but being rejected. This was going to our old exchange server, I would like to send a message back (assuming the headers are valid & not spam) saying the the email domain is no longer valid & they need to update their address list. Postconf –n append_at_myorigin = yes append_dot_mydomain = no biff = no config_directory = /etc/postfix mydomain = mylocaldomain mynetworks = hash:/etc/postfix/mynetworks myorigin = relay@mylocaldomain readme_directory = no relayhost = myrelayserver:123 smtp_generic_maps = regexp:/etc/postfix/generic smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = smtp_use_tls = yes smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) Thank you Steve
