> Microsoft Exchange Online has been blacklisted by Cisco's SpamCop: > > <https://www.spamcop.net/w3m?action=checkblock&ip=40.107.249.104>
One of the very many IPs they use. I'm sure you could find a few more if you looked. As a data point, during November 2024 so far, our spamtraps have received an average of 3400 unwanted messages from Microsoft outbounds every day. As a side note, and comparison, https://check.spamhaus.org/sbl/listings/microsoft.com currently has 2162 unhandled issues. Microsoft rates #3 on Spamhaus' list of top networks for exploited IPs, with only Algerie Telecom and Bharti Airtel ahead of it. https://www.spamhaus.org/reputation-statistics/networks/exploit/ In October they were #1. -- Atro Tossavainen, Founder, Partner Koli-Lõks OÜ (reg. no. 12815457, VAT ID EE101811635) Tallinn, Estonia tel. +372-5883-4269, https://www.koliloks.eu/ _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
