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I have checked these settings and they are enabled as expected but it has 3 different settings.
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I have checked these settings and they are enabled as expected but it has 3 different settings.

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Which of these three settings is enabled/ticked?
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Which of these three settings is enabled/ticked?

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Out Of Office Reply not working for external emails. it works internally but not externally. Users on the inside can receive the OOOR email but external email addresses don't get anything.<br />
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Exchange Online (Office365)
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Out Of Office Reply not working for external emails. it works internally but not externally. Users on the inside can receive the OOOR email but external email addresses don't get anything.

Exchange Online (Office365)

Out Of Office Reply not sending OOOR

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.