What do I need before I start?

The login to wherever your domain's DNS records live, and about two hours spread over a few weeks. Copy every DNS record your domain has today first, so you can put it back if something breaks.

Do the Gmail and Yahoo sender rules apply to a one-person business?

Yes. Every sender must authenticate with SPF or DKIM (the guide has you set up both), keep the spam complaint rate in Google Postmaster Tools below 0.3%, and format messages to the email standards.

Which chapter do people skip?

Chapter 2, the inventory of every service that sends as your domain. A sender you do not know about is a sender you will block when DMARC tightens.

Guides

Get your email out of spam

SPF, DKIM and DMARC set up right, for a business with one domain and a handful of tools that send mail for it.

$2920 pages, PDF

Buy Get your email out of spam

Instant download. Refund within 14 days if a guide does not help. By Json Knepper. Or all five for $99

Who it is for

The problem, in plain words.

The person who owns a business domain, keeps hearing "check your spam folder" from customers, and wants it to stop. You need the login to wherever your domain's DNS records live, and about two hours spread over a few weeks.

Anyone can type your address into the From line of an email. SPF, DKIM and DMARC are how receivers tell your real mail from forgeries. When they are missing or broken, your real mail looks like a forgery, and the safe move for a receiver is the spam folder, or since 2024 at the largest providers, refusal.

When you finish, your domain will have three kinds of record that tell Gmail, Yahoo, Outlook and every other mailbox provider which services may send as you: one SPF record, a DKIM key for each sending service, and a DMARC policy saying what to do with mail that fails. You will also have a written list of every tool that sends as your domain, and a ten-minute monthly check.

From the guide

Contents

What is inside.

Why mail lands in spamThe Google, Yahoo and Microsoft sender rules, and which ones apply to you
Inventory every service that sends as your domainFind the website form, the invoicing tool and the newsletter before they break
SPF without the 10-lookup trapOne record, written so it stays under the limit
DKIM per senderA signing key for each service, and how to tell it is yours
DMARC from p=none to quarantine to rejectThe policy record and a week-by-week timeline
Testing tools and reading the resultsMessage headers, DNS lookups and DMARC reports in plain words
Fixes for common breakagesForms, invoicing, CRMs, forwarding and the duplicate record
The monthly 10-minute checkWhat to look at so it stays fixed

Questions

Before you buy.

What do I need before I start?: The login to wherever your domain's DNS records live, and about two hours spread over a few weeks. Copy every DNS record your domain has today first, so you can put it back if something breaks.
Do the Gmail and Yahoo sender rules apply to a one-person business?: Yes. Every sender must authenticate with SPF or DKIM (the guide has you set up both), keep the spam complaint rate in Google Postmaster Tools below 0.3%, and format messages to the email standards.
Which chapter do people skip?: Chapter 2, the inventory of every service that sends as your domain. A sender you do not know about is a sender you will block when DMARC tightens.

Want the other four? All five for $99.

The bundle is every JKCA guide in one purchase. If a guide does not help, email hi@jkca.studio within 14 days of buying and we refund you.

Buy all five