On Mon, Jun 17, 2019 at 10:36:38AM -0600, @lbutlr wrote:
> Switching to dovecot LMTP appears to have changed the information in the
> received header:
The reported symptoms are unrelated to Dovecot LMTP.
> Here’s what the received header used to look like:
>
> Received: from [10.0.5.3] (c-71-229-144-93.hsd1.co.comcast.net
> [71.229.144.93])
> by mail.covisp.net (Postfix) with ESMTPS id B67B8118AD59
> for <kr...@kreme.com>; Sun, 16 Aug 2009 22:19:02 -0600 (MDT)
>
> As opposed to now:
>
> Received: from darth.lan (c-73-14.161.160.hsd1.co.comcast.net [73.14.161.160])
> by mail.covisp.net(Postfix 3.4.5/8.13.0) with SMTP id unknown;
> Sun, 16 Jun 2019 15:26:32 -0600
> (envelope-from <kr...@kreme.com>)
This may be produced by a milter, especially the "8.13.0" suggests
a Sendmail milter library. The "Postfix 3.4.5" may be due to a
non-default setting of "mail_name". As for "unknown" the milter
(if that's what it is) may have memoized absence of a queue-id
before Postfix assigned one (at RCPT TO).
--
Viktor.
