Hey guys. Anyone using Mimecast with O365 in a Hybrid Environment? We having issues getting the journaling working on the O365 mailboxes. Works great with the on-prem servers. We followed the Mimecast guide but can't get it working properly. When we send out the recipient receives it but we get an Udeliverable Error Email stating it wasn't able to send to the journal contact we setup. Not sure what i'm missing. Mimecast says it's on 365 side but don't really point to any area. Just looking to see if anyone has it working. Thanks.
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