On 12 Feb 2015, at 08:25 , Noel Jones <njo...@megan.vbhcs.org> wrote: > On 2/12/2015 12:43 AM, LuKreme wrote: >> >>> On Feb 11, 2015, at 6:20 PM, Wietse Venema <wie...@porcupine.org> wrote: >>> >>> LuKreme: >>>> Received: from thenewestsecret.net (unknown [170.130.246.215]) >>>> by mail.covisp.net (Postfix) with ESMTP id 00E42212DC0 >>>> for <*bob*@covisp.net>; Tue, 10 Feb 2015 08:53:22 -0700 (MST) >>>> Delivered-To: *bob*@covisp.net >>>> Received: by 170.130.246.215 with SMTP id >>>> 998S7h4.33K03w6s2R18O2.22351x4s23d1n26; >>>> Tue, 10 Feb 2015 08:51:05 -0700 (PST) >>>> X-Received: by 170.130.246.215 with SMTP id 134G6f10K6Z34b712c43li; >>>> Tue, 10 Feb 2015 08:51:05 -0700 (PST) >>>> Received: from thenewestsecret.net (thenewestsecret.net. ) >>>> by mx.google.com with ESMTP id >>>> 59333u4l19.1C4P11z.147.0.5.1.2.5.5.5.1.0.7.0.4 >>>> for <*bob*@covisp.net>; >>>> Tue, 10 Feb 2015 08:51:05 -0700 (PST) >>>> Mime-Version: 1.0 >>>> Date: >>>> Message-Id: <235.946____781y2r0b6qn6-c...@thenewestsecret.net> >>>> To: *bob*@covisp.net >>> >>> This message contains a Delivered-To: *bob*@covisp.net header. >>> Apparently, the sender added this to trigger a delivery error. >>> Apparently, the sender, c...@thenewestsecret.net, wants to receive >>> a bounce message. That message would confirm that *bob*@covisp.net >>> is a valid email address. >> >> Does it make sense to reject messages with a Delivered-To: header? > > Yes. Incoming mail with that header cannot be delivered by postfix, > regardless whether it's really looping or not. > > Although in this particular case it might be better to reject the > spammy-looking client.
Yes, but my postscreen is already aggressive enough that I had to tone it down a tad to let some legitimate mail (well, mail I wanted) in. >> Why does it generate a mail loop in my local postfix? > > The presence of that header triggers the loop detection in postfix. > The sender is adding that header either in a misguided attempt to > improve delivery, or to intentionally cause a bounce to verify the > address. What is interesting is that I see these *only* for one specific user, which is what made me think it was something on my end. > We don't know the motive of the sender. We do know this isn't really > a loop and it looks like spam to me. Oh, they are all spam so far. Thanks. -- 'Luck is my middle name,' said Rincewind, indistinctly. 'Mind you, my first name is Bad.' --Interesting Times
