On Thu, Jun 06, 2024 at 04:01:06PM -0400, Wietse Venema via Postfix-users wrote:
> GDS via Postfix-users:
> > Hello, I am seeing hundreds of lines like the one below in my mail.log from
> > this specific IP address, which belongs to Google.
> > Jun 5 19:09:32 arthemis postfix/error[86771]: 5D9D148296D:
> > to=<[email protected]>, orig_to=<root@localhost>, relay=none, delay=4099,
> > delays=4099/0.02/0/0, dsn=4.4.1, status=deferred (delivery temporarily
> > suspended: connect to localhost.com[74.125.224.72]:25: Connection timed out)
> >
>
> Maybe you have "myhostname = something.com" and Postfix infers $mydomain
> from that.
Indeed, when "mydomain" is not explicitly specified, one label is
dropped even if only two were present in $myhostname.
$ postconf -o myhostname=foo.com mydomain
mydomain = com
which, in combination with "append_dot_mydomain = yes", would match the
OP's report/observations.
It might be reasonable to infer "mydomain = $myhostname" when the latter
has two or fewer labels.
--
Viktor.
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