DemiSignal
Claude connectorCommunityCheck any domain's email authentication (DMARC, SPF, DKIM, MX, BIMI, MTA-STS) and generate SPF and DMARC records.
DemiSignal checks a domain's live DNS and grades its email authentication, so you can see why mail lands in spam or fails DMARC without leaving the conversation.
- check_domain: grades DMARC, SPF, DKIM (common selectors), MX, BIMI and MTA-STS. Returns each record, its status and the issues found, with a fix guide for every issue and a link to the full report.
- generate_spf_record: builds an SPF record from the services and servers that send your mail, and counts DNS lookups against SPF's limit of 10.
- generate_dmarc_record: builds a DMARC record and the host to publish it at, from your policy and report addresses.
No account or API key needed. The generators compute from your input only; nothing is looked up or stored. For ongoing monitoring and DMARC report analysis, connect the domain at demisignal.com.
- Tools
- 3
exposed by this connector
Movement
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Trending score
In its categories
How this connector compares with others in the same category. Positions are counted within the category, not across the whole directory.
Developer tools1,251st of 1,310 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 1249 | 1,000 | — | 958places down | |
| 1250 | 1,000 | — | 958places down | |
| 1251 | 1,000 | — | 958places down | |
| 1252 |  EaseWeb | 1,000 | — | — |
| 1253 | 1,000 | — | 958places down |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 |  Framer | 35,616,504 | 12,702 #72 | — |
| 2 |  Intuit Developer | 1,059,790 | 12,502 #76 | — |
| 3 |  Etherscan | 450,704 | 13,335 #56 | 10places down |
| 4 | 262,839 | 7,229 #426 | 67places up | |
| 5 |  TEXT TO QUANT | 252,724 | 13,970 #45 | 26places down |
Other562nd of 582 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 560 | 1,000 | — | 958places down | |
| 561 |  Containerdienst-Regional | 1,000 | — | — |
| 562 | 1,000 | — | 958places down | |
| 563 | 1,000 | — | 958places down | |
| 564 | 1,000 | — | — |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 | 29,445,468 | 12,305 #28 | — | |
| 2 | 6,049,367 | 13,629 #15 | 12places up | |
| 3 |  Netzero | 1,983,480 | 8,531 #110 | 3places up |
| 4 |  Sketchy Medical | 1,410,305 | 9,226 #87 | — |
| 5 |  Tomorrow.io Weather MCP App | 617,566 | 9,963 #69 | — |
Tools
- check_domain
- generate_dmarc_record
- generate_spf_record
- Categories
- Made by
- DemiSignal · Website
- Sign-in
- Not required
- Connector URL
- https://demisignal.com/mcp
- Transport
- Streamable HTTP
- Works with
- Claude, Claude API, Claude Code, Claude Desktop
- Added
- October 14, 2026
- More info
- Sponsorship
- Promote this connector