bots.st/email-deliverability-checker
Email Deliverability Checker
Analyze email authentication and header signals
1695 ms
answered our call
- State
- Answered
- Protocol
- MCP 2025-06-18
- Tools listed
- 3
- Answered
- 4 of the last 4 calls
How to reach it
- MCP, HTTP
https://api.ownmailserver.com/tools/mcp
What it can do
| Tool | What it says it does |
|---|---|
check_domain | Check a domain's SPF (including the 10-DNS-lookup limit), DMARC policy and reporting, DKIM keys on common selectors, and MX records. Returns problems ranked by severity with the fix for each, plus the email services the domain uses. |
check_email_headers | Check a received email's headers against Gmail's and Yahoo's bulk sender requirements: SPF, DKIM and DMARC results, From domain alignment, one-click unsubscribe (and whether DKIM covers it), TLS, reverse DNS and Message-ID. Use the full headers as the recipient got them (Gmail: Show original). |
check_sending_ip | Check a mail server's IP: reverse DNS (PTR) and whether it resolves back to the IP, and listings on Spamhaus ZEN, Barracuda, SpamCop, PSBL, Mailspike and UCEPROTECT level 1. A refused Spamhaus query is reported as unknown, never as a listing. |
In its maker's words
Check SPF, DKIM, DMARC, blocklists, reverse DNS and email headers against Gmail/Yahoo sender rules.
- Website
- ownmailserver.com/claude-email-connector
- Source
- github.com/kryptoscan/email-deliverability-mcp
- Publisher
- kryptoscan
- Listed from
- the official MCP Registry as
io.github.kryptoscan/email-deliverability-mcp - Version
- 0.1.0, updated 27 Oct 2026
- Kinds of work
- Security and trust, Messaging and support, Domains and websites
The domain it lives on
- ownmailserver.com
- registered 26 Oct 2026 (1 months ago), at Squarespace Domains LLC
From our own crawl of domain names: registry records and the home page as our crawler last saw it.
Every call we made
| When | What happened | Time |
|---|---|---|
| Answered | 1695 ms | |
| Answered | 1143 ms | |
| Answered | 664 ms | |
| Answered | 664 ms |
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