DLP Rule for Exchange using ExceptIfRecipientDomainIs not working any more
Hello, we had setup a DLP Rule for Exchange workloads that only allows sending to specific external recipients in a list we provide via populating the ExceptIfRecipientDomainIs attribute. This has been working fine until a few days back, when suddenly the rule was failing to apply on end users (domain is listed in the Rule's ExceptIfRecipientDomainIs) and email gets blocked. I then realized that the attribute is not populated anymore via Powershell and comes back empty! (Get-DlpComplianceRule -Identity "DLPRULE").ExceptIfRecipientDomainIs At the same time, the Rule on the compliance.microsoft.com portal shows up properly with the domains in question. I then noticed that those domains now only appear under the AdvancedRule attribute only. (Get-DlpComplianceRule -Identity "DLPRULE") | select -expand advancedrule So it seems there has been some change in DLP rules by the compliance team at Microsoft?
