DMARCLY

What is SPF?

Sender Policy Framework (SPF) is an email authentication mechanism which alllows only authorized senders to send on behalf of a domain, and prevents unauthorized users from doing so. SPF allows the receiver to check that an email claiming to come from a specific domain indeed comes fr…

"SPF PermError: too many DNS lookups" is a common error seen in many SPF (Sender Policy Framework) implementations. When an often overlooked SPF 10-DNS-lookup limit is exceeded, an SPF PermError, aka SPF permanent error, is returned. SPF PermError's can affect your email deliverability…

Two-factor authentication (AKA 2FA) is a method of confirming a user's claimed identity by using 2 factors: credentials, and a one-time password (OTP). Two-factor authentication provides an extra layer of security to your DMARCLY account.

Please follow these steps to enable t…

DMARC tags are used in a DMARC record to define various aspects of a DMARC implementation, such as policy, aggregate report email URI, forensic report email URI, and more.

A DMARC record is a TXT resource record published in the DNS for the target domain…

An SPF record is a TXT record published in the DNS by the domain owner, which specifies a whitelist of IP addresses allowed to send emails on behalf of the domain. When an email reaches the receiving server, the server will look up the SPF record in the DNS, and perform a check to determine if the e…

What is DKIM?

DKIM, which stands for DomainKeys Identified Mail, is an email authentication method designed to detect forged header fields and content in emails. DKIM enables the receiver to check if email headers and content have been altered in transit…