Comments on: Microsoft’s outlook.com servers and the art of delivering mails to them https://billauer.se/blog/2020/04/microsoft-outlook-hotmail-smtp-spam-blacklist/ Anything I found worthy to write down. Thu, 26 Mar 2026 13:15:15 +0000 hourly 1 http://wordpress.org/?v=3.1.2 By: Temper https://billauer.se/blog/2020/04/microsoft-outlook-hotmail-smtp-spam-blacklist/comment-page-1/#comment-1601 Temper Tue, 31 May 2022 08:28:49 +0000 https://billauer.se/blog/?p=6032#comment-1601 Yes I have seen this happen with Microsoft too. Ironically Microsoft outlook servers are now one of the BIGGEST SOURCES of scams and spams. Along with Gmail of course which still seems to be a scammer's delivery of choice. Many of the Outlook IPs have therefore been Blacklisted. See http://members.iinet.net.au/~micronica/spam-blacklist/spam2.txt Yes I have seen this happen with Microsoft too.
Ironically Microsoft outlook servers are now one of the BIGGEST SOURCES of scams and spams. Along with Gmail of course which still seems to be a scammer’s delivery of choice. Many of the Outlook IPs have therefore been Blacklisted.
See http://members.iinet.net.au/~micronica/spam-blacklist/spam2.txt

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