Email Deliverability Checker
Diagnose domain email health across SPF, DKIM, DMARC, MX, BIMI, TLS, and blacklists.
Overall Deliverability Score: 86/100
Evaluated across SPF, DKIM, DMARC, MX, BIMI, TLS & Blacklists.
v=spf1 record configured
Valid SPF record found for example.com containing explicit sender IPs and ~all mechanisms.
DKIM Signatures Active
DKIM public keys detected for default mail selectors (default._domainkey / google._domainkey).
p=none policy detected
DMARC record is published, but the policy is set to 'none' (monitoring only).
Primary & Secondary Mail Exchanges Found
Active MX hosts mapped for example.com with configured priority values.
BIMI record not published
No default._bimi TXT record found. Brand logo will not render automatically in supported webmail clients.
TLS 1.3 Transport Security Enabled
Mail servers enforce encrypted connections over Port 25 STARTTLS.
Clean status on 25+ major spam blacklists
Not listed on Spamhaus, Barracuda, or Sorbs blacklists.
What is Email Deliverability Checker?
Email Deliverability Checker is an all-in-one domain health diagnostic tool that analyzes domain email authentication policies and infrastructure settings. It inspects Sender Policy Framework (SPF), DomainKeys Identified Mail (DKIM), DMARC security policies, Mail Exchange (MX) records, Brand Indicators (BIMI), TLS transport security, and RBL spam blacklist status to ensure your transactional and marketing emails land in user inboxes instead of spam folders.
How to Use Email Deliverability Checker
- Enter your sending domain (e.g. example.com) into the domain lookup input field.
- Click Check Deliverability to run automated authentication diagnostic checks.
- Review your overall deliverability score, grade, and itemized SPF, DKIM, DMARC, and MX recommendations.
Examples
Review a domain with passing SPF and DKIM
Input: Domain: company.com
Output: Grade A | Score 85/100 | SPF: Pass | DKIM: Pass | DMARC: Warn (p=none)
Detect a missing SPF record
Input: Domain: mybrand.io
Output: Grade F | Score 40/100 | SPF: Missing | MX: Found
Common Mistakes
- Having multiple SPF records on a single domain, which invalidates SPF authentication completely.
- Setting DMARC to p=none permanently without progressing to enforcement policies (p=quarantine or p=reject).
- Forgetting to update DKIM selector records when switching email marketing or transactional email tools.
Why Use This Tool
- Comprehensive 7-point audit covering authentication, encryption, and blacklist status.
- Actionable DNS recommendation tips tailored to fix deliverability issues.
- Client-side diagnostic interface with instant grade score reporting.