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change email address

TA.Saurabh.Singh 41 Reputation points
2022-11-09T10:30:26.25+00:00

Attempted to add new smtp and will set to as reply address via office365 SSL for email user but getting an error.

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  1. Andy David - MVP 159.7K Reputation points MVP Volunteer Moderator
    2022-11-09T12:21:38.88+00:00

    Make the change to the on-prem object. Looks like you are syncing from on-prem.

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  2. KyleXu-MSFT 26,396 Reputation points
    2022-11-10T08:18:12.3+00:00

    @TA.Saurabh.Singh

    As AndyDavid said, this mailbox's AD account sync from the local AD.

    You need to modify the "proxyAddresses" from local AD. If there exist Exchange on-premises server, it is suggested to change from the Exchange on-premises admin center.

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