Forum Discussion
Office 365 Exchange Online server blacklisted
At 10:20AM 24 Nov AEST I'm seeing reports that Office 365 Exchange Online server mail-me1aus01hn0228.outbound.protection.outlook.com is appearing on different blacklist sources http://mxtoolbox.com...
Hi Sonia,
Maybe same issue as my customers have: https://techcommunity.microsoft.com/t5/Exchange/Exchange-Online-send-mail-through-high-risk-delivery-pool/m-p/31640#M414
I see a lot of emails are send through the high risk delivery pool and yes this pool is on some blacklists, but the regular pool is not.
I spoke to a MS engineer yesterday, the see the last days more of this issues at customers, it is already escaleted to the team who is responsible for this.
Regards,
Peter
This is where being an Exchange admin gets frustrating. On our own servers, we'd investigate, remediate and apply for the listing to be removed. With Exchange Online, Microsoft will do the same ... eventually. It just takes them longer.
On the upside I never need eseutil.
So we wait.
-Sonia
Microsoft confirmed the issue is resolved.
I don`t see messages send through the high risk delivery pool anymore.Regards,
Peter
Mxtoolbox.com is still reporting that Exchange Online server as being blacklisted on 6 different services.
