Forum Discussion
Autodiscover configuration in full hybrid
Hello,
I have a question regarding the configuration of the autodiscover service.
My infrastructure is full hybrid with a 2016 exchange server on premise.
I have already moved the mail flow to o365 by changing the mx record and moving all the mailboxes
The on premise server is used as an smtp relay for internal and external emails.
Currently my dns record, both on public and private dns, for autodiscovery points to the exchange on premise server.
Reading the microsoft article https://docs.microsoft.com/en-us/exchange/decommission-on-premises-exchange I am in scenario 3.
The article says If you were to even start the process by pointing the Autodiscover Records to Exchange Online, you would immediately break some features like hybrid public folder access.
I don't use public folder but I only use the on premise server as smtp relay.
So I can't point the autodiscover to the microsoft records autodiscover.outlook.com?
If I don't move my autodiscover record to autodiscover.outlook.com the exchange server on premise should be unavailable what happens?
Outlook clients will not be able to connect to o365?
Thank you
Regards
- Yes, you can point it to O365 without causing any issues to your environment.
Below cmdlet will change the SCP entry to null so that your outlook does not query AD for mailbox info
Get-ClientAccessService | Set-ClientAccessService -AutoDiscoverServiceInternalUri $ Null
And yes you need to point your dns to autodiscover.outlook.com for both internal and external.
7 Replies
- if you still have mailboxes on-prem then keep it pointing to on-prem else you can point it to O365.
I don't have any mailboxes on premises.
The on premise server has a connector that allows the relay of the email in an unauthenticated way because an old application must send email to the internet.- you can point your autodiscover to O365 then
