SpamFixer Email Deliverability Check for Zed

com.spamfixer/email-deliverability-check

Why do a domain's emails go to spam? Checks SPF, DKIM, DMARC, MX and blocklists. Free, no login.

client:Zed transport:streamable-http tools:1

Install SpamFixer Email Deliverability Check in Zed

~/.config/zed/settings.json · windows: %APPDATA%\Zed\settings.json

{
  "context_servers": {
    "email-deliverability-check": {
      "url": "https://spamfixer.com/mcp"
    }
  }
}

Merge this into your existing settings object — do not replace the file. Zed docs