# Stamp Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## Stamp

Checks your domain's SPF, DKIM and DMARC records and explains why your email lands in spam.

- Record: https://musedirectory.ai/connector/stamp
- Category: Marketing & Ads
- Developer: Clawhard (https://stamp.clawhard.com)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 77ms, checked 2026-11-06T23:00:57Z
- Endpoint: https://stamp.clawhard.com/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-11-05T14:51:22Z)
- Source: Found in the official MCP Registry (com.clawhard/stamp) https://registry.modelcontextprotocol.io/v0/servers?search=com.clawhard%2Fstamp

Reads live public DNS to check a domain's SPF, DKIM, DMARC and MX setup, counts SPF lookups against the RFC limit, and tests whether records meet Gmail and Yahoo sender rules. Muse can also validate a record before you publish it and point to what needs fixing.

Example request: "Why are my company's emails going to spam, and is my SPF and DMARC set up correctly?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Stamp to help me. It is a free service with an MCP server at https://stamp.clawhard.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- stamp_check_email_domain: Use when the user asks why their email goes to spam, whether their domain is set up to send email, or before they launch a newsletter, cold outreach, transactional email or a new sending service, e.g. "why are my emails going to spam?", "is my SPF/DKIM/DMARC right?", "do I meet G
- stamp_check_dns_record: Use when you or the user are about to publish or edit an SPF, DMARC or DKIM TXT record, for example after writing a new SPF record that adds a sending service, or when the user pastes a record and asks "is this right?". Detects the record type. SPF: syntax per RFC 7208, every inc

Screening checks:
- MCP handshake: pass (Answered in 197ms)
- Domain against threat feeds (Cloudflare security DNS): pass (stamp.clawhard.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (2 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (Domain registered 276 days ago)
- AI review of purpose and tool behavior: pass (No concerns)