Check a domain's DMARC, SPF, DKIM, MX, BIMI and MTA-STS records. Generate SPF and DMARC records.
Connect Remote server
claude mcp add --transport http mcp https://demisignal.com/mcp?utm_source=mcp-registry
{
"mcpServers": {
"mcp": {
"url": "https://demisignal.com/mcp?utm_source=mcp-registry"
}
}
}
{
"servers": {
"mcp": {
"type": "http",
"url": "https://demisignal.com/mcp?utm_source=mcp-registry"
}
}
}
Settings > Connectors > Add custom connector
URL: https://demisignal.com/mcp?utm_source=mcp-registry
Tools 3 found in our last check
check_domainLook up a domain's live DNS and grade its email authentication: DMARC, SPF, DKIM (common selectors), MX, BIMI and MTA-STS. Returns each record, its status and the issues found, with a guide link per issue. A domain checked in the last few minutes is answered from that check (cac…
generate_spf_recordBuild an SPF TXT record from the services and servers that send email for a domain, with an estimate of the DNS lookups it uses against SPF's limit of 10. Computes from the arguments only; nothing is looked up or stored.
generate_dmarc_recordBuild a DMARC TXT record and the host to publish it at, from a policy and the addresses that should receive aggregate reports. Notes what the record does not cover yet. Computes from the arguments only; nothing is looked up or stored.
Details
| Endpoint | https://demisignal.com/mcp?utm_source=mcp-registry (Streamable HTTP) |
| First published | 14 Oct 2026 |
| Last updated | 14 Oct 2026 |
| Registry name | com.demisignal/mcp |
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