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IAD_Flyer's avatar
IAD_Flyer
Copper Contributor
Aug 30, 2021

Does the "Send Later" feature on Exchange Online add any message headers?

With a relatively new Exchange Online feature allowing users to schedule delivery of a message with the "Send Later" option on OWA, is there any message headers that indicates when this feature was used? Or otherwise any way to have a transport rule detect a scheduled message?  I compared headers and could not find anything.

Note this is different than the scheduled delivery option in the MS Outlook client that has been around forever.

Thanks!

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