GUIDES
Email & DNS guides
Practical, no-fluff guides to the things that break email deliverability and domain security — with the tools to check each one as you go.
How to Check and Improve Your Domain Reputation
What domain reputation means, how mailbox providers score it, how to check yours, and the concrete steps that raise it.
8 min read
Why Your Emails Go to Spam (and How to Fix It)
The real reasons legitimate email lands in the spam folder — authentication, reputation, content, and list quality — plus how to fix each.
9 min read
How to Set Up SPF, DKIM, and DMARC Correctly
A step-by-step walkthrough of email authentication: what each record does, how to configure them, and how to avoid the mistakes that silently break them.
11 min read