Are there any mail-enabled objects on-prem? Public Folders? any routing from on-prem Exchange to another mail system?
If not, then its ok to set to Authoritative.
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Hi!
I have inherited a settings where our default domain is set to Internal Relay. With this settings Office365 doesn't reject unknown recipients and we get a loop in our Hybrid environment.
All our mailboxes are moved to O365 but we still have Exchange in house.
My questions is if we change our Accepted Domain from Internal Relay to Authoritative then will it create any issue in email delivery or some downtime? Do I have to check something before doing this?
Thanks for your input on this.
Are there any mail-enabled objects on-prem? Public Folders? any routing from on-prem Exchange to another mail system?
If not, then its ok to set to Authoritative.