DKIM is a form of email authentication that allows an organization to claim responsibility for a message in a way that can be validated by the recipient. This allows recipients to verify that the message was sent from an authorized source and has not been modified since it was sent.
Enabling DKIM for Proofpoint Essentials
Proofpoint now allows your domains to be authenticated with DKIM. It is available on all of their packages and you should be able to view your DKIM configurations on the domains page.
If you don’t have your DKIM keys configured, create them now using our free DKIM record generator tool. Once you get hold of your public and private key pair you would then need to publish your public key on your DNS.
Note that you cannot manually import your DKIM keys and need to contact the Proofpoint domain administrator to publish them on your DNS for you.
It is important to look up and validate the published DKIM DNS record using our free DKIM record lookup tool. Enable DMARC for your domains to protect against spoofing. Sign up for a DMARC trial today!