DMARC Policy Progression: Moving From none to quarantine to reject Safely
The staged path from monitoring to enforcement that locks out spoofers without locking out your own invoices.
The Blog
Practical email deliverability writing from twenty years behind the inbox
Building an SPF Record: Structure, Includes and the Lookup Limit
How SPF records actually work, why they break when they grow too large, and how to build one deliberately from scratch.
Email Authentication Basics: SPF, DKIM and DMARC Without the Jargon
What SPF, DKIM and DMARC actually do, why the major inbox providers made them mandatory, and how to check your own domain in seconds.
Better Email Performance: What Improvements Are Worth To Your Business
Small gains in open rate and spam placement compound into measurable revenue. This is not about fixing broken campaigns — it is about quantifying what better performance is actually worth.
Mautic vs a Hosted Email Platform: What Self-Hosting Actually Costs
Open-source marketing automation is free to download but not free to run. A clear-eyed comparison of what self-hosting Mautic really costs against hosted platforms.
The Pre-Send Checklist: Ten Things to Verify Before You Hit Send
A quick, systematic check before any campaign launch catches the mistakes that later show up as spam complaints and reputation damage.
Understanding Your DMARC Reports: What Those Daily Emails Actually Mean
DMARC aggregate reports are the most underrated deliverability diagnostic you have. Here is how to read them without wading through raw XML.
Email that earns its place in the inbox.
Practical writing on authentication, deliverability and the systems behind both — from twenty years of fixing the same problems.