On Fri, Nov 25, 2022 at 06:15:40PM -0300, Gustavo Balduino wrote: > What i expected to happen is that, when b...@domain-a.com sends a message > to al...@domain-b.com, as the message is entering through a submission > smtpd, it should not rewrite it and always relay the message to the > destinations MX, even if it has to reconnect to my own MX smtpd.
For different message routing for submission vs. inbound port 25 see: https://www.postfix.org/MULTI_INSTANCE_README.html One Postfix instance listens on port 25 only, and another on port 25 only. Each has their own configuration. The MSA routes some domains differently than the MTA does. -- Viktor.