Blog
Notes on email deliverability, search and software.
2026-09-02
How email verification works
What syntax checks, DNS lookups and SMTP checks tell you about an address.
Read2026-09-16
What is reverse DNS (PTR) and why mail servers need it
A plain explanation of PTR records and how they relate to email deliverability.
Read2026-10-01
A short local SEO checklist for small businesses
Five things to check if you want to show up in Google Maps and local search.
Read