Home/Notes/Why DMARC matters for a plumber
Why DMARC matters for a plumber
2 May 2024
How a plumber deals with DMARC — and what usually goes wrong.
The problem: a tag manager container with leftover pixels. The DMARC check fails for a plumber.
We rotate API keys for DMARC annually. a plumber did not see the point until we showed them the access log: the old key had been used from an IP in a country nobody on their team has visited.
A friend of the owner at a plumber had set up DMARC years ago. When we audited, the config still pointed at a server they stopped paying for in 2024.
Half the meeting with a plumber was explaining what DMARC is. The other half was agreeing that a tag manager container with leftover pixels should have been fixed a year ago.
When a plumber asked for a quote on DMARC, we sent a one-paragraph email instead of a slide deck. They signed the same day.
The owner at a plumber asked why DMARC matters. We showed them the error page their customers see when it breaks. That ended the conversation.
We solved DMARC for a plumber by moving it behind a reverse proxy. The old configuration stayed live as a fallback for forty-eight hours, then we pulled it.
Related notes
Tell us what you need.
Write a few lines about your project. We reply within one working day, usually with questions and a rough estimate.
hello@digitalserved.com