Maybe we should create an FAQ Entry for Mails blocked by Microsoft.
As Oliver from dmTECH said yesterday
"Guides from Al Iverson
(https://www.spamresource.com/2020/08/help-im-blocked-at-microsoft-what-do-i.html)
and Hetzner
(https://docs.hetzner.com/robot/dedicated-server/troubleshooting/microsoft-blacklist/#olc-outlook-consumer)
have been shared on this list in the past on how to solve that. In most
cases it boils down to:
1. Open a ticket via the linked form
2. Wait
3. Escalate
4. Repeat steps 2. and 3. until the issue is solved"
Mit freundlichen Grüßen
Lukas Adrian Kron
Geschäftsführung
Bitte denken Sie an die Umwelt, bevor Sie diese Nachricht drucken.
[email protected], www.lugges.eu, +49 2302-9838905
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44801 Bochum AG Bochum HRB 19066, GF.: Lukas Adrian Kron
Am 23.01.2026 um 20:00 schrieb Richard Laager via mailop:
Microsoft is blocking mail from us (Wikstrom Telephone Company, small,
rural ISP).
My guess is this is a lingering or second-order effect from
yesterday's outage. For example, since all that mail was delayed, when
they came back online, perhaps the resulting higher volume of mail
tripped their spam filtering.
I submitted support request 7096434358 at olcsupport.office.com.
I received an automated or form response that effectively says we are
not blocked. But we still are. The automated/form response asked for
specific error messages, which I had already provided in the support
request (it was a required field). I replied to the email with a fresh
example.
Anyone have other ideas or a useful contact?
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