Report on the number of blocked emails

Frequent Contributor


I need to generate a report on the ammount of emails which are getting blocked automatically by Microsoft, based on their categories, like Malware, Phishing, etc, so after I can make a report on the number of emails which are analyzed by humans.

I'm trying to understand where can I extract this information. On the Microsoft 365 Defender portal, on "Email & Collaboration", I've got the "Review" and then "Quarantine" tab, which shows quarantined emails based on the categories, but here I cannot extract a report nowhere.

Then I've got the "Exlorer" tab, in which I can select for example the "Delivery Action": "Delivered to junk" and "Blocked" and I got a number for last 30 days of blocked emails.


Is this the best approach to reach this goal?

3 Replies
best response confirmed by dmarquesgn (Frequent Contributor)

@Robert Young 

Hi, thanks for the references, which was something that I was not very familiar with.

I've read those and then I got a couple of questions based on the data I extracted from those reports, which I've opened on this thread.



Check out our latest blog on quarantined messages report through PowerShell. Generated reports facilitates you with the kind of information like  quarantined emails categorized on date range, quarantined emails from a specific user and many more. Know more about the quarantined messages and how to generate these reports from here.