Are you an Email Service Provider (ESP) or other third-party sender, but found that the FAQ or Glossary didn’t answer your questions? Then you may want to check out this DMARC FAQ written specifically for ESPs by the email authentication specialists at ValiMail. Written in a clear and conversational style, it focuses on the nuances and issues that you may encounter when setting up and sending on behalf of a client who may not be an email expert.