Thanks for your response. Would want to avoid running multiple instances as far as possible. I feel I am missing something in the configuration or my approach isn't correct. Postfix should be able to handle this trivial task in a single instance.
----- Original message ----- From: John Fawcett <j...@voipsupport.it> To: Postfix users <postfix-users@postfix.org> Subject: Re: How to act based on the interface on which the mail was received? Date: Mon, 11 Feb 2019 12:36:14 +0100 On 11/02/2019 08:42, RA wrote: > Hi. > > I have this postfix instance to relay all mail to a relay host but I wish to > make this instance also an archiving MX for a domain. Initially the > configuration was: > > mynetworks = 127.0.0.0/8 > mailbox_size_limit = 0 > inet_interfaces = loopback-only > inet_protocols = ipv4 > myhostname = domain.com > mydestination = > biff = no > append_dot_mydomain = no > soft_bounce = yes > relayhost = *************** > smtp_sasl_password_maps = *************** > smtp_use_tls=yes > smtp_sasl_auth_enable = yes > smtp_sasl_security_options = > smtp_tls_CAfile=/etc/ssl/certs/ca-certificates.crt > smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated > defer_unauth_destination > compatibility_level=2 > > In order to make it accept mail for a domain for archiving from the primary > mail server, I removed the inet_interfaces so that it listens to public > interface also and then configured the domain: > > mynetworks = 127.0.0.0/8 > mailbox_size_limit = 0 > inet_protocols = ipv4 > myhostname = domain.com > mydestination = > biff = no > append_dot_mydomain = no > soft_bounce = yes > relayhost = *************** > smtp_sasl_password_maps = *************** > smtp_use_tls=yes > smtp_sasl_auth_enable = yes > smtp_sasl_security_options = > smtp_tls_CAfile=/etc/ssl/certs/ca-certificates.crt > smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated > defer_unauth_destination > compatibility_level=2 > # > # > virtual_mailbox_domains = domain.com > virtual_mailbox_base = /home/archive > virtual_mailbox_maps = static:mail/ > virtual_uid_maps = static:1000 > virtual_gid_maps = static:1000 > > But now even locally generated email for domain.com was getting stored in the > virtual mailbox instead of getting relayed to the relayhost. So made > virtual_mailbox_domains= empty in main.cf and configured public interface > separately in master.cf: > > mynetworks = 127.0.0.0/8 > mailbox_size_limit = 0 > inet_protocols = ipv4 > myhostname = domain.com > mydestination = > biff = no > append_dot_mydomain = no > soft_bounce = yes > relayhost = *************** > smtp_sasl_password_maps = *************** > smtp_use_tls=yes > smtp_sasl_auth_enable = yes > smtp_sasl_security_options = > smtp_tls_CAfile=/etc/ssl/certs/ca-certificates.crt > smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated > defer_unauth_destination > compatibility_level=2 > # > # > virtual_mailbox_domains = > virtual_mailbox_base = /home/archive > virtual_mailbox_maps = static:mail/ > virtual_uid_maps = static:1000 > virtual_gid_maps = static:1000 > > master.cf: > > xx.xx.x.x:smtp inet n - y - - smtpd -o virtual_mailbox_domains=domain.com > 127.0.0.1:smtp inet n - y - - smtpd > > But this isn't working. The server is refusing to accept mail for domain.com > on the public interface. In other words, how do I override > virtual_mailbox_domains for the public IP? I wish to relay all locally > generated emails to smarthost but store the email received on public IP for > this domain. > > Thanks. I believe the way to do it is to set up two postfix instances. There is a tool that makes that easier than it sounds. http://www.postfix.org/postmulti.1.html John
