SpamFixer Email Deliverability Check
Why do a domain's emails go to spam? Checks SPF, DKIM, DMARC, MX and blocklists. Free, no login.
What it does
SpamFixer Email Deliverability Check is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
No capability identified yet from its description.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 1h ago (live check)Hosted endpoint
https://spamfixer.com/mcpstreamable-http
In Claude Code: claude mcp add --transport http spamfixer-email-deliverability-check https://spamfixer.com/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"spamfixer-email-deliverability-check": {
"url": "https://spamfixer.com/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 1h agoONLINE SpamFixer Email Deliverability Check answered an MCP connection on 28 Oct 2026 and introduced itself as spamfixer 1.0.0 (MCP protocol 2025-06-18).
1 tool offered to AI assistants
check_email_deliverability· Check why emails from a domain might land in spam. Looks up the domain's public DNS: SPF, DKIM (common selectors), DMARC, MX, and whether its mail servers are on major blocklists. Returns a 0-100 score and plain-English issues, worst first.
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Hosted endpoint | https://spamfixer.com/mcp | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Website | https://spamfixer.com/connector | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Version | 1.0.0 | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 1h ago |
Change history
- NEW28 Oct 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is SpamFixer Email Deliverability Check still online?
Free alerts · no accountDo you run SpamFixer Email Deliverability Check? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
Are you the publisher of SpamFixer Email Deliverability Check?
Free · show your listingAn independent listing builds trust with your buyers. Announce it, and add the badge to your website or README.
<a href="https://electraindex.com/mcp/spamfixer-email-deliverability-check?utm_source=badge&utm_medium=share&utm_campaign=listing"><img src="https://electraindex.com/api/badge/spamfixer-email-deliverability-check" alt="Listed on Electra Index"></a>Questions about SpamFixer Email Deliverability Check
How do I connect SpamFixer Email Deliverability Check?
Use the hosted endpoint https://spamfixer.com/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does SpamFixer Email Deliverability Check offer?
When Electra Index connected on 28 Oct 2026, it listed 1 tool: check_email_deliverability. The full list is in "Live check" above.
Is SpamFixer Email Deliverability Check online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 1h ago.