Outlook forwarding rule stopped working

Hi MLK_MLK,

Thank you for choosing Microsoft forum.

Based on your description, I've done some research. According to Configuring external email forwarding in Office 365, "Office 365 doesn't allow automatic external forwarding by either Inbox rules or mail box configuration, which provides a secure default policy. However, the admin can modify these settings for all, or some, users in the organization.“ And, ”Disabling automatic forwarding to external addresses in Office 365 is being rolled out in phases with details communicated via Message Center posts.“ Therefore, would you please contact your Exchange admin to have a check of the outbound anti-spam policy?

Hope this helps! Thank you.

Sincerely,

Qian

didn't help me either

typical msft non helpful many worded gibberish

Here is the guidance the Outlook In App Team is using.  Sharing this in case it might help.

This customer may be having an issues with blocking or unblocking email forwarding in M365, for tenants the related Message Center notification is: MC223357

To enable or disable email forwarding for a specific mailbox, see https://docs.microsoft.com/en-us/microsoft-365/admin/email/configure-email-forwarding?view=o365-worldwide

If you are getting the following error: “550 5.7.520 Access denied, Your organization does not allow external forwarding”, please make sure the policy is configured to enable External Auto-forward - https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/external-email-forwarding?view=o365-worldwide

On the tenant level, control of external forwarding is done using the outbound spam policy. You can check the outbound spam filter policy from Security and Compliance Center or by using the Get-HostedOutboundSpamFilterPolicy command.

Note: It is recommended to keep the External Autoforward disabled on your default outbound spam filter policy and enable it only for the users who need external forwarding by creating a custom policy for those users. You can read more in https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/configure-the-outbound-spam-policy?view=o365-worldwide

Ok, this set myself as a spammer for one day (only incoming emails) :-).
So remove the 30/50 mail count limits or set them to a few thousand.

In combination with the bug that I (as a global Exchange admin) was not listed in https://protection.office.com/restrictedusers and even a Microsoft support ticket did not help I had to wait till today and re-send my yesterday afternoon's mails :-).

At least I was informed by mail :-):

A medium-severity alert has been triggered

Email sending limit exceeded 

Severity: Medium 

Time: 11/10/2020 12:15:00 PM (UTC) 

Activity: Email sending limit exceeded 

User: [...] 

Details: User [...] has sent 8 internal and 41 external recipients in the last day and was attempting to send to an additional 2 recipients, which would have exceeded their Daily limit.

Last message 650...2a5. 

   [View alert details]

Thank you, 

The Office 365 Team 

Here is real more simple solution to this problem:

https://office365itpros.com/2020/11/12/microsoft-clamps-down-mail-forwarding-exchange-online/

To whomever, is the PM for this product decision. Extremely bad call. Buring this in your relentless steam of Office 365 updates is TERRIBLE. This is a basic email function utilized for hundreds of scenarios.