Justin, TWC just implemented new Cloudmark MTAs over the last 2 months that are now generating those AUP# rate limit errors.
There are 3 separate codes and depending on which one will produce a 5 min, 1 hour or 24 hour rate limit block. spammer_check AUP#1310 spammer_check AUP#1320 spammer_check AUP#1330 Hope that helps. -Ira On Wed, Oct 11, 2017 at 3:18 PM, Justin Frechette <mr.freche...@gmail.com> wrote: > We're seeing an increase in the amount of mail we're bouncing to @*.rr.com > addresses with the following diags: > > smtp;550 5.1.0 <envelope.from> sender rejected AUP#I-1310 > smtp;550 5.1.0 <envelope.from> sender rejected AUP#I-1320 > > [image: Inline image 2] > > I've not seen any other posts in mailop about this, but there are a > handful of posts on TWC's forum. I'm also not seeing this diag listed on > their Postmaster pages. All my searching is pointing toward a problem with > TWC. > > Does anyone have any insight? Anyone else experiencing the same uptick in > volume over the past 20 days or so? > > Justin > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop > >
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