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Microsoft 365 (Known Issues) AdBlock Browser Add-on Rejecting Messages in Safari

Individuals report they do not receive emails and/or receive a failed delivery report after sending an email. This problem is related to a bug in the Safari web browser add-on called "AdBlock". AdBlock appends additional code to Microsoft 365 emails, causing many spam filters to flag messages as spam. This is not an Microsoft 365 bug.

Resolution Status: Uncertain

AdBlock appears to have resolved this issue and updated their app since this article was created. Please see their support site for more information.

Workaround: 

Disable the AdBlock browser add-on, use a different web browser, or Mac OS X configuration to connect to Microsoft 365.

 




Keywords:
O365, Office 365, OotW, Outlook, Outlook user, Outlook 2013, Outlook 2011, Outlook 2010, Outlook 2014, email, emails, email reject, rejection, rejects, Safari, AD Block, known issue, M365, Microsoft 
Doc ID:
42449
Owned by:
Help Desk K. in UW-Milwaukee Help Desk
Created:
2014-08-04
Updated:
2024-03-27
Sites:
UW-Milwaukee Help Desk
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