Email Deliverability Checker
Checks whether your email setup is hurting your chances of reaching the inbox.
by cognyai · ★ 110 on GitHub
What it does
You give Claude a sending domain. It checks the technical settings that control email trust and delivery, along with any blocklist issues, and pulls bounce and complaint rates if your email tool is connected. You get back a plain-English list of problems ranked by what to fix first.
Who it’s for
A good fit for marketers, founders and anyone promoting a business and people who run the day-to-day of a business.
Do you need to code?
No. You can use this without writing or editing any code.
How to install
Add it to Claude as a skill. Download the skill folder from its source page, zip it, and upload it in Claude’s settings under Skills. See the step-by-step guide.
Safety note
Works without any account connections; optional email tool connection adds more detail.
As with any add-on, only install skills from sources you trust, and read what it does first.
License
No license file found, so the reuse terms are unclear. Check the source before sharing or selling anything built with it.