Hi Brett, Information on those errors was posted by Ira Hawkins back in October. Even though they are 5xx-level errors it seems they should be treated as a possible grey-listing.
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 Regards, Andrew ANDREW D. WINGLE Deliverability Manager 717-625-7857 direct From: mailop [mailto:mailop-boun...@mailop.org] On Behalf Of Brett Schenker Sent: Wednesday, February 14, 2018 2:49 PM To: mailop@mailop.org Subject: [mailop] RoadRunner Help? Not sure if anyone from RoadRunner is on here or can help. We have a client that's receiving the below in bounces but the IPs aren't blocked by Road Runner and doing some research on the web it seems like a technical set up issue possibly? Anyone have suggestions/advice? 550 5.1.0 <bounce_3982f869-fd10-e811-80c2-00155da75f18_p...@bounce.myngp.com<mailto:bounce_3982f869-fd10-e811-80c2-00155da75f18_p...@bounce.myngp.com>> sender rejected AUP#I-1330 Brett -- Brett Schenker Man of Many Things, Including 5B Consulting - http://www.5bconsulting.com Graphic Policy - http://www.graphicpolicy.com Twitter - http://twitter.com/bhschenker LinkedIn - http://www.linkedin.com/in/brettschenker
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