
Can you have multiple DMARC records on a single domain? The answer is no: a domain MUST NOT have multiple DMARC records, otherwise DMARC processing fails to function on that domain.
A DMARC record is a TXT record in the DNS starting exactly with "v=DMARC1", followed by a list of DMARC tags…

Once you've created a Google Workspace, formerly known as G Suite, account on your domain, you will need to set up email authentication so that emails sent from Google Workspace on behalf of your domain are fully authenticated, and keep monitoring the authentication status and take action if necessa…

What is SPF?
Sender Policy Framework (SPF) is an email authentication mechanism which allows 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 fro…

"No auth, no entry" is a catchy phrase commonly used in the email industry to mean an email won't be considered for delivery unless it's properly authenticated. "auth" here means email authentication based on modern email authentication technologies like SPF, DKIM, and DMARC…

It's critically important for any company using Office 365 Exchange Server for email to implement DMARC, DKIM, and SPF to prevent or stop email spoofing and phishing as well as improve email deliverability.
Office 365 has become the de facto standard for productivity software…

We will go over how to set up DMARC forensic report encryption with PGP in this article.
As DMARC forensic reports contain Personally Identifiable Information (PII), we recommend that you encrypt such reports, so that only those who have the permission can access them…