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SPF, DKIM & DMARC: The Complete Email Authentication Setup Guide
Mar 26, 2026
Muhammad Ziauldin
Category
Email Deliverability
All Email Deliverability Articles
Email Deliverability
Why Do My Emails Go to Spam? Reasons and How to Fix It
Overview If your emails keep landing in the spam folder, it is almost never bad luck. Mailbox providers score every message on dozens of signals, and…
Jul 11, 2026
7 min
Email Deliverability
What Is Greylisting and How Does It Affect Email Delivery?
Overview Greylisting is a quiet, behind-the-scenes spam defense that temporarily turns away mail from senders it does not recognize. If you have ever…
Jul 11, 2026
7 min
Email Deliverability
What Is DMARC and How Do I Set It Up the Right Way?
Overview DMARC, short for Domain-based Message Authentication, Reporting, and Conformance, is the policy layer that ties SPF and DKIM together. It t…
Jul 11, 2026
7 min
Email Deliverability
DKIM Explained: What It Is and How to Set It Up
Overview DKIM, short for DomainKeys Identified Mail, is a way for your mail server to add a cryptographic signature to every message you send. Recei…
Jul 11, 2026
7 min
Email Deliverability
What Is an SPF Record and How Do I Check Mine?
Overview An SPF record is a DNS entry that lists which mail servers are allowed to send email for your domain, helping inbox providers spot spoofed m…
Jul 11, 2026
8 min
Email Deliverability
What Are MX Records and How Do I Check Them?
Overview MX records are the part of your domain's DNS that tells the rest of the internet which servers should receive email for your domain. Without…
Jul 11, 2026
8 min
Email Deliverability
How to Protect Your Sender Reputation and Stay Out of Spam
Overview Sender reputation is the trust score that mailbox providers assign to you based on how you send email. A strong reputation sends your mail …
Jul 11, 2026
7 min
Email Deliverability
Email Deliverability: A Complete Guide for Beginners
Overview Email deliverability is the practice of getting your emails into the inbox rather than the spam folder or a silent block. It depends on far…
Jul 11, 2026
7 min