On 4/14/22 9:58 AM, Wietse Venema wrote:
Emmett Culley:
Is there anything I can do to specify that the Recieved: headers
have the "correct" domain name depending on what domain is sending
an email (From:)?
The Received: headers contain the value of the "myhostname" parameter,
i.e. the identity of this Postfix MTA instance. This name should
match the IP address where the MTA sends and receives mail.
Postfix can send and receive email on behalf of many domains. Email
is not like HTTP, and there is no requirement that the Postfix MTA
identity matches the name of every domain that it handles mail for.
But it is supported ever since Postfix got SNI support a few years
ago.
Wietse
Thanks Wietse. I will study up on SNI. I am working on new servers with
RockyLinux 8 and so will also be using a newer version of postfix.
Emmett
