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/SuperTool.aspx?action=blacklist%3a104.47.116.228&run=toolpage
I've raised a support ticket but thought I'd post in here in case anyone else is impacted.
It's preventing one of our clients emailing payslips to staff who have hotmail.com etc addresses or any personal address being protected by blacklist checks.
Will update this when Microsoft have resolved.
-Sonia
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
