Email Deliverability Audit: SPF, DKIM, DMARC, MX, BIMI avatar

Email Deliverability Audit: SPF, DKIM, DMARC, MX, BIMI

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from $10.00 / 1,000 domain auditeds

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Email Deliverability Audit: SPF, DKIM, DMARC, MX, BIMI

Email Deliverability Audit: SPF, DKIM, DMARC, MX, BIMI

Bulk email deliverability audit. Checks SPF, DKIM, DMARC, MX, BIMI and MTA-STS for each domain, grades it A to F and gives the exact fix. Built for agencies and teams meeting Gmail and Yahoo sender rules.

Pricing

from $10.00 / 1,000 domain auditeds

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Brightrun Labs

Brightrun Labs

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3 days ago

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Audit the email authentication of any number of sending domains in one run. Each domain gets an A to F grade, a 0 to 100 score, and a plain-English list of what to fix first.

$10 per 1,000 domains audited. Invalid domains and failed lookups are free.

Who it is for

  • Agencies and freelancers onboarding clients onto cold email, newsletters or CRM sending.
  • Ops and marketing teams checking they meet the Gmail and Yahoo bulk-sender rules (SPF, DKIM and DMARC required).
  • Lead-gen and sales teams screening prospect domains before outreach.

What it checks

CheckWhat you get
SPFPresent, single record, DNS-lookup count against the 10 limit, all qualifier, deprecated ptr
DKIMProbes 37 common selectors (Google, Microsoft 365, SendGrid, Mailgun, Mailchimp, Klaviyo, HubSpot, GoHighLevel and more) plus any you add; flags revoked and short keys
DMARCPolicy (none / quarantine / reject), pct, report address
MXRecords and priority
BIMI, MTA-STSPresent or not

Input

  • Domains: example.com, https://www.example.com/page or jane@example.com all work.
  • Extra DKIM selectors: optional, if your platform uses a custom one.

Output (one row per domain)

{
"domain": "example.com",
"grade": "C",
"score": 71,
"summary": "Grade C (71/100). Fix first: DMARC policy is p=none (monitoring only)...",
"bulkSenderReady": true,
"spf": { "status": "ok", "lookups": 6, "allQualifier": "~" },
"dkim": { "status": "found", "selectors": [{ "selector": "google" }] },
"dmarc": { "policy": "none", "pct": 100, "reportAddress": "mailto:dmarc@example.com" },
"mx": { "count": 5 },
"issues": [{ "severity": "medium", "message": "...", "fix": "..." }]
}

Notes

  • Reads public DNS only. No emails are sent and nothing is changed on your domain.
  • DKIM can only be confirmed for selectors we probe. If yours is custom, add it under Extra DKIM selectors.
  • Results reflect DNS at run time; recent changes can take up to 48 hours to propagate.

Support

Open an issue on the Issues tab. We aim to reply within 24 hours on weekdays.