The cold email deliverability blog

Plain-language guides on inbox placement, written for the people who actually send cold emails — not for sysadmins.

How to Set Up SPF for Cold Email (Step-by-Step)

Set up SPF for cold email the right way: which tools need their own include, which don't, plus step-by-step DNS setup for Cloudflare, GoDaddy & more.

June 5, 202611 min read

deliverability
spf
cold-email

Does a Subdomain Protect Your Email Reputation? No.

Cold outreach on a subdomain doesn't isolate your main domain's reputation at Gmail and Outlook. Here's what actually happens — and what to do instead.

May 25, 202612 min read

deliverability
subdomain
cold-outreach