I'm dealing with a frustrating problem where all emails containing my company's URL in the body or subject are being quarantined across all Microsoft tenants we manage, with the URL being flagged as malware. To give you some background: we are using Business Standard licenses bought directly from Microsoft. This issue came up first in March 2025, and while they resolved it after a month, it has reoccurred. I opened a new support case in late July 2025, but it's been six weeks without any response. I even asked for an SLA credit two weeks ago, but I haven't heard anything back. How can I get Microsoft to take action on this?
2 Answers
Have you checked if your company's domain is set up correctly with SPF, DKIM, and DMARC? That could affect how emails are processed by Microsoft. But if the issue is as widespread as you describe, those setups might not be the main problem here. It seems like a really unusual and serious flagging issue.
The problem is definitely not on your side then. It sounds like Microsoft needs to take another look at how they're classifying your URLs.
From what I gather, if the quarantined emails are sent externally, it's unlikely you’ll get an SLA credit because that’s not part of their agreement with you regarding other tenants. Is the issue happening for all emails containing your URL, regardless of the sender? If that’s the case, it’s unusual and may warrant sharing your domain with the community for more insight.
Honestly, I'm not too concerned about the SLA credit. It’s not about the money; it’s that emails just don’t get through for any of my tenants that I manage. This is all about fixing the problem, not the details.
Got it. They really need to step up and address this. Six weeks with no updates is way too long.
Yes, we have all those records in place and they've been set up correctly. That’s not what’s causing the problem.