External OOF is not working

Copper Contributor

Out of office message for external sender is not working from Exchange Online. The message tracking logs shows below error:

Reason: [{LED=250 2.1.5 RESOLVER.OOF.IntToExt; handled internal OOF addressed to external recipient};{MSG=};{FQDN=};{IP=};{LRT=}]


We have allowesd External OOF and Automatic Reply for default remote domain

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