This post provides step-by-step instructions on how to add a DMARC record in CloudFlare.
About DMARC recordsFirst of all, a DMARC record is a TXT record published to the DNS for your domain, under dmarc.yourdomain.com, where “yourdomain.com” is your actual domain or subdomain…
Can you have multiple SPF records on a single domain? The answer is no: a domain MUST NOT have multiple SPF records, otherwise SPF fails with PermError.
An SPF record is a TXT record in the DNS starting exactly with "v=spf1", followed by an array of mechanisms and/or modifiers…
Yes, you can set up DMARC without DKIM and have only DMARC and SPF in the equation. In this case, DKIM check always fails and DMARC authentication result is up to SPF check and SPF identifier alignment, which still somewhat works but is less than optimal…
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…
DMARC aggregate reports are files in the XML format containing aggregate email authentication information sent by Email Service Providers (ESP) like Gmail, Office 365, Yahoo Mail, etc. periodically to recipients designated by domain owners…
DMARC failure reports are generated and sent almost immediately by the mailbox provider after an email fails DMARC authentication. It provides detailed information about the email message so that the domain administrator can use it to investigate into what caused th…
