When your public folder content migration to Exchange Online is complete or you create public folders for the very first time, you do not have to worry about managing many aspects of public folders. ...
Updated Jan 11, 2021
Version 2.0
Blog Post
8 MIN READ
How Exchange Online automatically cares for your public folder mailboxes (via AutoSplit)
Jodee Hayka Hazem_Embaby The_Exchange_Team We are also seeing the issue of emails being sent frommailto:Autosplit_GUID@TENANT.onmicrosoft.com or mailto:PF-MailboxX@TENANT.onmicrosoft.com
We've raised a Unified Support ticket for this months ago but despite weekly chasing and making it high severity it will apparently be July before this is fixed by the product group 😞 With hundreds of mail enabled public folders, many of which have multiple SMTP addresses and folder assistant rules associated with them, I'm reluctant to start messing about with them.
Our customers have pretty much given up on us being able to send an email to them with the correct email address on it. It's not a good advert for Microsoft's email platform or their ability to fix issues which are seriously impacting to their customers.
Jodee Hayka Did you try the enable/disable and did it resolve the issue?