On Tue, 24 Feb 2026, Frido Otten via mailop wrote:
Yes, same issue here. It seems unfair as the amount
of spam coming in from them is ridiculous. As I
already mentioned before, rate limiting sometimes
happen because of spam coming in from them, being
forwarded back to a client mailbox there. Maybe 'too
big to block' shouldn't the case for Microsoft
anymore.
If I remember correctly they do have a second set of IP addresses for
sending messages which they think might be unwanted, so you can block
those without blocking the majority of good messages from them.
--
Andrew C. Aitchison Kendal, UK
[email protected]
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