Forum Discussion

Copper Contributor

Mar 12, 2020

Solved

<Solved>Emails being marked as phishing by office

Hi all, I am having a big problem with office quarantining my user's emails before they are sent. Here is some back story: I run the IT for three businesses. two of them are on the same tenant in ...

microsoft 365

josephmiller1256
Mar 16, 2020
stonefr33 I was able to fix the problem. It was related to DMARK and all of that jazz, but it was something the head office had to do, and was out of my control. No one told me this was the case.

stonefr33

Copper Contributor

Mar 16, 2020

josephmiller1256
Have you run the message headers through a message header analyser? It may be that this tenant/sending domain has a misaligned SPF, DKIM or DMARC record

Microsoft Remote Connectivity Analyzer > Message Analyzer

https://mha.azurewebsites.net/

Or MX toolbox

https://mxtoolbox.com/EmailHeaders.aspx

Thanks

josephmiller1256
Copper Contributor
Mar 16, 2020
stonefr33 I was able to fix the problem. It was related to DMARK and all of that jazz, but it was something the head office had to do, and was out of my control. No one told me this was the case.