this post was submitted on 18 Aug 2023
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SPF failing for hotmail addresses (zerobytes.monster)
submitted 1 year ago by [email protected] to c/[email protected]
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The original was posted on /r/sysadmin by /u/G883 on 2023-08-18 06:18:18+00:00.

Someone appears to have big brained at Microsoft and is routing all their emails via office 365. However their SPF doesn't include them servers!

FROM: IP: SERVER

hotmail.com 104.47.108.158 kor01-sl2-obe.outbound.protection.outlook.com

hotmail.com 40.92.62.155 aus01-sy4-obe.outbound.protection.outlook.com

hotmail.com 40.92.63.164 aus01-me3-obe.outbound.protection.outlook.com

hotmail.com 40.92.45.82 nam04-dm6-obe.outbound.protection.outlook.com

hotmail.com 40.92.63.157 aus01-me3-obe.outbound.protection.outlook.com

wooo!

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