Calendar reminders - GRRRRR!

[ghockin]

Hi Guys

 

Well, we have an odd one here!

 

We run Exchange2010 Hybrid with O365, all working ok on cloud, we are finding that mailboxes that get migrated from Cloud back to on premises dont display their calendar reminders either in outlook or owa2010. Mailboxes created directly on premises are fine. And if you migrate the mailbox back to cloud its then fine again !, The only fix we have at the moment is using MFCMapi to delete a folder called 'Reminders1' that gets created by Outlook then run Outlook with the /resetfolders switch (running Outlook without using MFCMAPI first doesn't fix the issue). One you have performed the MFCMAPI and the reset folders calendar reminders start working again for the user and are fine afterward.

 

Has anyone experienced any issues with this. We are on the verge of a paid Microsoft ticket about this one, I dont really want to login to 100+ users when I need to on board them back to on premises and fix their mailboxes individually. The free Office365 support doesn't cover us as the issue is with on premises mailboxes only.

 

TIA

 

Gary