[email protected]:
> Hi,
>
> I am currently migrating from a sendmail-based relay to Postfix 3.6.3.
> Sendmail has the feature to automatically rewrite @localhost to
> @$myhostname automatically. As far as I have seen Postfix doesn't do
> this with trivial-rewrite(8) by default nor is a config option for this.
>
> What I have come up with is doing in /usr/local/etc/postfix/canonical:
> > @localhost @myhostname
>
> I had to add the actual hostname since @$myhostname is not supported.
> My question: Is this the proper way to go with Postfix to mimic sendmail
> behavior?
We can do soething similar in Postfix:
/etc/postfix/main.cf:
sender_canonical_maps = inline:{{@localhost = @$myhostname}}
The downside of doing this is that the Postfix SMTP server will
accept mail from non-existent@localhost, so if you could make the
rule more specific (a collection of 1:1 mappings) then that would
help.
Wietse
