Where is your sending setup solid, where is the risk? 26 binary checks · 5 categories · 0–10 score — aligned with industry standards.
Show your brand logo in the inbox. Three levels exist; each with different receiver coverage.
Unsigned SVG. Some mailbox providers (those not requiring a certificate) show the logo; most major consumer providers do not.
Requires DMARC p=quarantine or p=reject. SVG Tiny PS format, default._bimi DNS record is enough.
→ /en/docs/Verified Mark Certificate — trademark + signed by a corporate CA. Logo shown across all major mailbox providers.
Trademark registration required. Yearly cert fee ~$1.5K-3K. 4-12 week process. DMARC p=reject mandatory.
→ /en/docs/Common Mark Certificate — designed for the iOS mail client's BIMI support. More flexible trademark requirement; faster purchase path.
BIMI rendered on iOS 16+ and macOS Ventura+ mail. Practical solution for brands without a trademark.
→ /en/docs/Your sender reputation is measured from 3 independent sources. Auto-connected on ENTERPRISE; manual check recommended on standard plans.
0-100 scale. Computed by major reputation services. 80+ healthy; 70-80 caution; under 70 critical.
Scan against SBL (intentional spammers) + CSS (Composite Snowshoe Spammers) + PBL (dynamic/end-user IP) lists.
SCBL (SpamCop Blocking List) — built from automatic spam traps + complaint feedback. 24h auto-expire.
SPF, DKIM (dual-sign + key strength), DMARC alignment. The 3 layers that let your domain say "I sent this."
Your sender IP and domain checked across 19 blocklists. A single hit can wreck deliverability.
MX, MTA-STS, TLS-RPT, DNSSEC, Forward-Confirmed rDNS. Compliance with modern email security standards.
RFC 8058 One-Click Unsubscribe, hidden text detection, HTML safety, URL shortener, plain-text alternative.
ARC seal, BIMI, Message-ID, rDNS, Reply-To alignment, display-name spoof detection.
Type the email address where you want the report sent. Tick the GDPR consent checkboxes.
The system generates a unique test address. From your sending setup (SMTP, ESP, transactional service) send any email — any subject and body works.
The system receives the inbound mail and runs 26 checks in parallel: authentication, RBL scans, content analysis. Live progress is shown on screen.
You see a 0–10 score and a 5-category breakdown. Every failed check has a "How do I fix this?" link. The PDF report is also sent to your email.
The Mail Score Test gives your sending email or domain a 0–10 health score across 26 industry-standard checks: SPF, DKIM, DMARC, MTA-STS, TLS-RPT, DNSSEC, BIMI, ARC, blocklists, content hygiene, and more. It reveals the risk of landing in spam folders.
Yes, it is completely free and requires no sign-up. You only share the email address where the report will be sent. Under GDPR Article 17 you can request deletion of your data at any time.
About 20 seconds on average. When you send the test mail to our system, 19 RBL scans, DNS checks, and content analysis run in parallel; results are shown on screen and emailed as a PDF.
5 categories, 26 binary checks: Authentication (SPF, DKIM dual-sign + key strength, DMARC alignment) · Reputation (IP + domain across 15 RBLs) · Infrastructure (MX, MTA-STS, TLS-RPT, DNSSEC, FCrDNS) · Content (RFC 8058 One-Click, hidden text, HTML safety, URL shorteners, plain-text alt) · Best practices (ARC seal, BIMI, Message-ID, Reply-To alignment, display-name spoof detection).
The 0–10 scale is the industry standard and easy to understand. Sendnomi runs 26 checks, including extras tailored to the Turkish market (KVKK/GDPR-ready unsubscribe, DNSSEC compliance, charset detection, IDN punycode).
Test data is auto-deleted within 48 hours; only the score and breakdown are retained. The mail body is purged. Public shareable report URLs never show your email address. Data is processed and stored in Türkiye.
Currently the active mode is a single mail-send test; a dedicated domain DNS health tool is on the roadmap. In the meantime, sending a real test email from your domain gives you a comprehensive check.
Each failed check links to a "How do I fix this?" guide. The most common issues are missing SPF/DKIM/DMARC records, outdated TLS, or blocklist entries. Sendnomi Mailserver configures these automatically; expert support is available on the ENTERPRISE plan.