Check a domain's SPF, DKIM, DMARC and MX from live DNS, the Gmail/Yahoo rules, and fix records.
Connect Remote server
claude mcp add --transport http stamp https://stamp.clawhard.com/mcp
{
"mcpServers": {
"stamp": {
"url": "https://stamp.clawhard.com/mcp"
}
}
}
{
"servers": {
"stamp": {
"type": "http",
"url": "https://stamp.clawhard.com/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://stamp.clawhard.com/mcp
Tools 2 found in our last check
stamp_check_email_domainUse 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…
stamp_check_dns_recordUse 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 in…
Details
| Endpoint | https://stamp.clawhard.com/mcp (Streamable HTTP) |
| First published | 5 Nov 2026 |
| Last updated | 5 Nov 2026 |
| Registry name | com.clawhard/stamp |
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