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inboxguard.io

Developer Toolshttps://inboxguard.io/listed as of 2026-08-01
Continuous SPF, DKIM, DMARC, MTA-STS, BIMI, and 13-DNSBL monitoring for engineering teams shipping transactional and lifecycle email. Daily scans, instant alerts, hosted DMARC reports.
See Ora's auditWe loaded this site in a real browser and scored its tools. Score: 51/100 (C).

Tools

scan_domainactimperative
Run a free email-deliverability scan (SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, DNS blocklists) for a domain and return a 0-100 score with per-check findings. Anonymous, no account required, rate-limited to 5 scans/hour per IP.
Input schema
{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain to scan, e.g. example.com (apex domain, no scheme or path)."
    }
  },
  "required": [
    "domain"
  ]
}
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