anyone on from hotmail.com, msn.com, live.com smtp?
joe at breathe-underwater.com
Sat May 9 02:35:08 UTC 2020
We are getting this messages when sending emails from our domain. We've
submitted tickets, but haven't received a response yet. Anyone have any
550 5.7.1 Unfortunately, messages from [18.104.22.168] weren't sent. Please
contact your Internet service provider since part of their network is on
our block list (S3140). You can also refer your provider to
It's our own address and everything on the Microsoft site says we are clean
with no issues.
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