I have a lot of email accounts. Probably too many. The problem I am having involves someone sending me an email from a yahoo.com account getting blocked when it gets forwarded from one of my outlook.com email accounts to another of my outlook.com email accounts. Here's an outline:
[Email addresses already anonymized]
1. Email from *****@yahoo.com is sent to *** Email address is removed for privacy ***
2. *** Email address is removed for privacy *** attempts to forward the email to *** Email address is removed for privacy ***
3. However, the email is blocked with an error similar to the following:
------Original Message------
From: *** Email address is removed for privacy ***
To: *****@yahoo.com
Subject: Delivery Status Notification (Failure)
Sent: some date and time
This is an automatically generated Delivery Status Notification.
Delivery to the following recipients failed.
*** Email address is removed for privacy ***
-----Embedded Message-----
Final-Recipient: rfc822;*** Email address is removed for privacy ***
Action: failed
Status: 5.7.0
Diagnostic-Code: smtp;550 5.7.0 (BAY004-MC2F56) Unfortunately, messages from (65.54.190.146) on behalf of (yahoo.com) could not be delivered due to domain owner policy restrictions.
-----End of Embedded Message-----
--Forwarded Message Attachment--
From: *****@yahoo.com
To: *** Email address is removed for privacy ***
subject, message, etc. continue here
This does not happen with any other domain, as far as I know. In particular, I have confirmed that emails from gmail.com addresses do not cause this problem. In addition, I have no problem receiving emails from yahoo.com or gmail.com addresses when they are sent to one of my yahoo.com or gmail.com addresses and then forwarded to my outlook.com address in a similar fashion to what I described above.
I'm pretty confident this is a bug in outlook.com, which is not recognizing when a yahoo.com email is forwarded using outlook.com's own forwarding mechanisms, and instead applying a security policy that should not be applied in this case.
Please provide any troubleshooting help, if applicable to this problem. Otherwise, please report this issue to the appropriate team. Thanks.