Using transport rule to block emails with empty body in Exchange Online?

Question

Is there a way (using regex or something else) to create a rule that blocks/dumps emails that have an empty body? We get a lot of "feeler" emails from random Yahoo, Gmail, etc addresses that have no subject and no body and I'd rather just toss them.

Answer 1

Hi @Joe Grover

For message subject you can use regax ^$ to match an empty string.

Create a transport rule like:

While based on my test it may not work for the message body, as message body may contain other characters or elements although the message body seems to be empty.

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