Forum Discussion
Exchange Online MailUser ExternalEMailAddress Attribute changes (Hybrid)
Hi Everyone, i'm looking for a Error in Exchange Online, where my Teams Users have (partly) no Calendar, when their Mailbox is onPremise. When i tried Autodiscover v2 for effected Users i got...
pilba Hi, not really in my comfort zone here but have you looked at the prerequisites?
Requirements for mailboxes hosted on-premise (how Exchange and Microsoft Teams interact)
https://docs.microsoft.com/en-us/microsoftteams/exchange-teams-interact#requirements-for-mailboxes-hosted-on-premises
Yes of course. Support confirmed after 8 weeks that there is an unsuspected error in the logs..
pilba Is it possible this workaround is applicable for your scenario?
'Free/busy lookups fail from Exchange Online to on-premises in a hybrid deployment'
https://docs.microsoft.com/en-us/exchange/troubleshoot/administration/hybrid-freebusy-lookups-fail#symptoms