You’ve pretty much already got the idea.
The recipient should safe-sender the sending address of the probes, and that should solve the issue. Failing that … this. Aloha, Michael. -- Michael J Wise Microsoft Corporation| Spam Analysis "Your Spam Specimen Has Been Processed." Open a ticket for Hotmail<http://go.microsoft.com/fwlink/?LinkID=614866> ? -----Original Message----- From: mailop <mailop-boun...@mailop.org> On Behalf Of Andy Smith via mailop Sent: Tuesday, September 8, 2020 3:15 PM To: mailop@mailop.org Subject: [EXTERNAL] [mailop] What's Microsoft's S3150 block list and where do I go to request removal? Hi, We have a customer who's been receiving Icinga (basically Nagios) alerts every few hours for the last few days to their hotmail address. The customer could/should have either addressed the situation or halted the alerts, but they didn't and that's their choice. In the third day of this we've started getting this NDR: [removed]@hotmail.com host hotmail-com.olc.protection.outlook.com [104.47.55.161] SMTP error from remote mail server after pipelined MAIL FROM:<nag...@mon0.bitfolk.com<mailto:nag...@mon0.bitfolk.com>> SIZE=2107: 550 5.7.1 Unfortunately, messages from [85.119.80.238] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmail.live.com%2Fmail%2Ftroubleshooting.aspx%23errors&data=02%7C01%7Cmichael.wise%40microsoft.com%7C4ec77d8ffb164584593508d854455d6f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637352004190536265&sdata=brcK1FXZH4fOCHPHfskmoWVDYEL1iUXHK1trMdhBfaE%3D&reserved=0. [BN8NAM12FT030.eop-nam12.prod.protection.outlook.com] So, what's "S3150"? — it isn't mentioned at all on https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmail.live.com%2Fmail%2Ftroubleshooting.aspx%23errors&data=02%7C01%7Cmichael.wise%40microsoft.com%7C4ec77d8ffb164584593508d854455d6f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637352004190536265&sdata=brcK1FXZH4fOCHPHfskmoWVDYEL1iUXHK1trMdhBfaE%3D&reserved=0 — and where should I be going to request delist? I realise I need to sort out SPF for that envelope sender. All of the mails will have been almost identical so I can see why something might have been triggered, however they were requested by the recipient. Cheers, Andy _______________________________________________ mailop mailing list mailop@mailop.org<mailto:mailop@mailop.org> https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fchilli.nosignal.org%2Fcgi-bin%2Fmailman%2Flistinfo%2Fmailop&data=02%7C01%7Cmichael.wise%40microsoft.com%7C4ec77d8ffb164584593508d854455d6f%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637352004190536265&sdata=FVQPQeo8MTfEZfsvUKZW4Smt0gajIfJ%2FEdYDrzxze7s%3D&reserved=0
_______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
