Dear all,

We are currently creating requests by sending emails to support@ourdomain.com, with the SDP email address in BCC. When we reply to the requester, the response uses our support@ourdomain.com address. DMARC, SPF, and related configurations are all correctly set up and working as expected.

However, when the original request comes from outside our network, SDP sometimes rejects the BCC email due to a DMARC failure. This is understandable, as the DMARC validation is no longer valid in this scenario.

My assumption is that the SDP mail server should ignore DMARC checks for such cases to avoid this issue. Or am I missing something?