Mail Domain Doctor

Check a domain email setup from Claude: SPF, DKIM, DMARC, MTA-STS, blocklists and the exact DNS records to fix.

Add to Claude Read the docs

Mail Domain Doctor reads public DNS records and reports whether a domain is set up correctly for sending and receiving email. It parses SPF and counts the DNS lookups against the limit of 10, evaluates DMARC policy and reporting, looks for DKIM keys, and checks BIMI, MTA-STS, TLS-RPT, DNSSEC and domain expiry.

Each finding comes with the exact record to add or change. A checklist maps the result to the Gmail and Yahoo bulk-sender requirements, and marks the items that cannot be seen in DNS.

Example prompts

Check the email setup of example.com and list the DNS records I need to change.
Generate the DNS records for example.com to send with Amazon SES.
Check these client domains for SPF and DMARC problems: a.com, b.com, c.com.

Add it to Claude

  1. In Claude, open Settings, then Connectors, then Add custom connector.
  2. Enter the URL https://maildoctor.tidybutton.com/mcp and save.
  3. Choose Connect. A sign-in page asks for your email address and sends a six digit code. No password is needed.

Plans

Free

$0
  • 10 domain checks per month
  • Bulk check up to 3 domains
  • DNS record generator for 8 providers

Pro

$9 per month
  • 1,000 domain checks per month
  • Bulk check up to 50 domains
  • Saved domain list re-checked weekly with a change log

Details on the pricing page.