The Zeqo blog
Practical, jargon-free guides on email deliverability — so your emails reach the inbox instead of the spam folder.
SPF, DKIM & DMARC Explained: A Plain-English Guide for Founders
The three DNS records that decide whether your email lands in the inbox — explained without the jargon, plus how to check yours in 30 seconds.
Why Your Cold Emails Land in Spam (and How to Fix It)
Authentication is only half the battle. The real reasons outreach gets filtered — and a checklist to land in the inbox instead.
How to Check if Your Domain Is Blacklisted (and Get Delisted Fast)
A blacklisting can block your email overnight — without any warning. How to find out if you're listed, get removed fast, and avoid it happening again.
The Email Deliverability Checklist for Agencies Managing Many Client Domains
Twenty clients, twenty domains, twenty ways for email to silently break. A repeatable system for keeping every client's mail in the inbox.
Google & Yahoo Sender Requirements: The Checklist Every Sender Needs
Since 2024, Gmail and Yahoo enforce real rules for senders — miss them and your mail gets rejected. The complete checklist, explained simply.