One of the first steps to ensuring good domain/IP reputation and consequently successful email deliverability is authentication and encryption – it helps receivers “trust” your email. This article provides a clear overview of what’s required including SPF, DKIM and DMARC.

*** This is a Security Bloggers Network syndicated blog from The Spamhaus Project authored by The Spamhaus Team. Read the original post at: https://www.spamhaus.org/resource-hub/deliverability/authentication-and-encryption-for-email