Understanding PTR DNS Resource Records
PTR records are used to establish a more secure and reliable email delivery system that helps identify what infrastructure is truly sending emails.
News & Knowledge
How to Publish a DMARC Record with GoDaddy
For those of you that use GoDaddy as your DNS provider, here are instructions for adding a DMARC record.
Understanding and Resolving Gmail and Yahoo Email Error Codes
Starting February, 2024, long established email authentication best practices will become a requirement.
Understanding Gmail and Yahoo DMARC Requirements
Starting February, 2024, long established email authentication best practices will become a requirement.
Cybersecurity Maturity Model Certification
October 30, 2024: The Cybersecurity Maturity Model Certification Program rule will be effective December 16, 2024. With this final rule, DoD establishes CMMC Program to verify contractors have implemented required security measures necessary to safeguard FCI and CUI.
Google Groups Security Vulnerability
Recent discussions in the email security ecosystem have highlighted a security loophole concerning Google's handling of emails sent to a Google Group.
DMARC Prominent in Interagency Phishing Guidance
CISA, NSA, FBI, and MS-ISAC have released guidance to outline phishing techniques criminals commonly use and to provide recommendations for organizations of all sizes.
Source Guide: Salesforce
This guide describes the process for configuring Salesforce to send DMARC-compliant messages.
DMARC: Foundational Ransomware Defense
DMARC allows people to protect their domains from unauthorized use by fighting ransomware’s attempted delivery by email.
What is “External Destination Verification”?
dmarcian processes data for an enormous number of domains and automatically adds the External Domain Verification record as needed. This is how people can use dmarcian to process DMARC data by directly inserting a dmarcian reporting address into a DMARC record.