UNDELIVEREDMAIL365

Question

I have received an e-mail from "UndeliveredMail365" that states:-

"You have 29 new Quarantined messages as of [date] which are listed below along with the actions that can be taken:

Release to Inbox: Send the message to your Inbox

Report as Not Junk: Send a copy of the message to Microsoft for analysis"

I do not know whether this a genuine e-mail or phishing. The full address from which the e-mail has been sent is pendingofficemails@quaratine.server.com [I am suspicious of the misspelling of quarantine].

Can you advise whether or not this is a genuine e-mail from Microsoft before I click on the "release to inbox" hyperlink.

Thank you

Alastair Lyons

clint oliveira · Answer

The email is not legitimate, so you can safely conclude that this email should be ignored.

First navigate to your EAC > Protection > Quarantine and verify if the emails are present.

If you see some emails in Quarantine you can check why they went to Quarantine by performing the following steps"

1) I recommend getting the header of the email that you received and analyze it: https://testconnectivity.microsoft.com/ > header analysis.

2) Check Anti-spam message headers:

https://docs.microsoft.com/en-us/office365/securitycompliance/anti-spam-message-headers

This will tell you why emails are marked as spam and are present in the Hosted Quarantine.
Hope this helps.

Clint Oliveira

wroot · Answer

Private outlook.com accounts has usual anti spam and anti malware protection, same as gmail, etc. If automated system finds malware it deletes the message and user don't see it. If it thinks it is a spam, it goes to junk folder. There is no other means for regular users to manage this.&nbsp;&nbsp;So, this was just a phishing email. You can either ignore and delete it or mark it as a junk, so the system will learn to filter out such messages in thr future. No system is fail proof, so occasionally such messages come through. Especially if they come from hacked mailboxes on Gmail, Microsoft servers.&nbsp;

ananya tripathi · Answer

Hello Alastair,&nbsp;Please find the below article that has a similar issue:&nbsp;https://answers.microsoft.com/en-us/outlook_com/forum/oemail-orestoremail/outlook-office-365-automatic-quarantine/5cbda864-b7c4-4e20-818c-709eb89b6c7d&nbsp;Regards,Ananya Tripathi

ananya tripathi · Answer

Also, this is not a&nbsp;legitimate email address:&nbsp;pendingofficemails@quaratine.server.com

alastair lyons · Answer

Clint - thank you very much for this : can you just clarify under which web address I will find EAC&gt;Protection&gt;Quarantine. Alastair

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