- When the page can't get you a test address, it says so where the address would be and offers another try. It used to replace the whole page with an error about an analysis nobody had started.
- On a phone the test address wraps onto a second line, so you can read what you are about to copy. It was cut off with an ellipsis.
- A report has a button that copies its link. Reports get forwarded, and the address bar was the only way to pass one on.
- RFC citations link straight to the quoted section, without a redirect in between, and the Google help links follow their pages to the Workspace help site.
/apileads to the API reference rather than a 404.- On a phone, the page with your test address offers to copy its own link, so you can open it on the computer you send from. The address stays reserved for an hour either way.
- Under the address, a short note on where sending platforms keep their "send test" box, since a test sent from a mail app leaves out the headers the platform adds.
- The documentation, the API reference and the agent skill said 39 checks while reports ran 41. The number now comes from the check registry, so the next check shows up on every page at once.
What changed in the tool and when, newest first: checks, the report, the API, fixes. I keep this by hand from the commit history, so the dates are the days the change was made. The project started on August 14, 2026.