I have two instances on one postfix server, The two instances have its own IP and domain setting. The default instance is "postfix",The second instance is "postfix1" created by using command "postmulti -I post1 -G outgoing -e create". I've also set the smtp on the two instances both.and I also installed dovecot too.
The default postfix main.cf: +++++++++++++++++ myhostname = mail.example1.com mydomain = example1.com myorigin = $mydomain mynetworks = 127.0.0.0/8, 10.0.0.0/24 home_mailbox = Maildir/ smtpd_banner = $myhostname ESMTP smtpd_sasl_type = dovecot message_size_limit = 10485760 mailbox_size_limit = 1073741824 smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $myhostname smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, permit broken_sasl_auth_clients = yes multi_instance_directories = /etc/postfix1 ++++++++++++++++++++ The postfix1 instance main.cf: ++++++++++++++++++++ inet_protocols = ipv4 multi_instance_group = outgoing multi_instance_name = postfix1 myhostname = mail.example2.com mydomain = example2.com myorigin = $mydomain inet_interfaces = all mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain mynetworks = 127.0.0.0/8, 10.0.0.0/24 home_mailbox = Maildir/ smtpd_banner = $myhostname ESMTP smtpd_sasl_type = dovecot message_size_limit = 10485760 mailbox_size_limit = 1073741824 smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_local_domain = $myhostname smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, permit broken_sasl_auth_clients = yes +++++++++++++++++++++++++++++++ then I add a user "admin" to the system The default postfix instance runs well when I use "admin" to login the third smtp client, and the user "admin" send mail according to the default instance. but when I use the command "telnet mail.exampl2.com 25" to connect to the postfix2 instance, the server returns "220 mail.example1.com ESMTP". how to connect to the postfix2 instance by using smtp?thanks. I also installed the MUTT to send email on the server When use the "telnet mail.example1.com" -- Sent from: http://postfix.1071664.n5.nabble.com/Postfix-Users-f2.html