DLP - masking CCD in emails

Hi everyone,

Is it possible to mask data in the outgoing emails?

The goal is to achive compliance with PCI 3.1 requirements (4.2 Never send unprotected PANs) we want to mask CCD in emails.

For example, in case an employee sends email with PAN, then the DLP in its turn masks the PAN with asterisk. So the recipient of such email will not get an email with clear CCD, but masked with asterisk.

Thank youin advance foryour thoughts.