Publish your domain’s DMARC document to avoid phishing and spoofing. In the event you’re using a shared IP account from a service provider like SendGrid, don’t build DKIM and DMARC. It forces your mail streams to own “domain alignment” that could potentially cause your emails to fail authentication and https://it-support35431.blogs-service.com/57701199/the-smart-trick-of-smtp-server-that-no-one-is-discussing