>> If so, the Proofpoint-protected Google Workspace tenant owner needs >> to configure it (workspace) to not enforce email authentication >> policy, as SPF/DKIM auth will almost certainly be broken by the >> filter, and DMARC (where applicable) will fail for nearly all mail.
> I sadly fear that the tenant falls into the not so small category of > "academic institution that clouded out all services and did not retain > sufficient in-house knowledge to be able to even have an email-addr. to > write to where such a request from an external party, i.e., me, would > be understood"; As such, getting them to fix things, is not really an > option. As an FYI in case you do get ahold of someone, it is a simple configuration on the Google Workspace side. It’s the Inbound Gateway setting in Apps > Google Workspace > Settings for Gmail > Spam, phishing, and malware. They just need to populate it with the IP addresses of their Proofpoint cluster. Best, Jason
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