🚫 Spam Testing Tool

Test Your Email for Spam
Before You Hit Send

Check your cold email against 25+ spam filters, authenticate your domain, analyze content triggers, and predict inbox placement — all before you send a single email.

25+
Spam Filters Checked
3s
Average Test Time
98%
Prediction Accuracy
Free
For All TuruMail Users
📧 Email Spam Tester
Paste your email content below and enter your sending details to run a full spam analysis.
8.7
/ 10
Excellent — Inbox Ready
Your email is likely to reach the primary inbox for major ISPs.
✅
SPF Record
Valid SPF record found. Sending IP is authorized.
✅
DKIM Signature
DKIM key found and valid (2048-bit).
✅
DMARC Policy
DMARC record found with p=quarantine.
✅
SpamAssassin Score
Score: 1.2 / 5.0 — Well below spam threshold.
⚠️
Subject Line Length
Subject is 58 characters. Recommended: under 50 for mobile. Consider shortening.
✅
Content Analysis
No spam trigger words detected. Text-to-HTML ratio is good.
✅
Link Analysis
0 links detected. No shortened URLs or blacklisted domains.
✅
Unsubscribe Link
One-click unsubscribe detected. Compliant with Gmail/Yahoo requirements.
What We Check
25+ Factors That Determine Inbox vs. Spam
Our spam test analyzes every signal that major inbox providers use to classify your email.
🔐
Authentication Records
Checks SPF alignment, DKIM signature validity, DMARC policy, and BIMI presence. Failed authentication is the #1 cause of Gmail rejection.
🔴 Critical Impact
📊
SpamAssassin Score
Runs your email through SpamAssassin's 1,000+ rules. Industry-standard spam scoring used by most enterprise mail servers.
🔴 Critical Impact
🖥️
IP Reputation Check
Queries 20+ real-time blacklists including Spamhaus, Barracuda, SORBS, and MXToolbox to check if your sending IP is listed.
🔴 Critical Impact
✍️
Content Analysis
Scans your subject line and body for 500+ known spam trigger words, excessive punctuation, ALL CAPS usage, and misleading claims.
🟡 High Impact
🔗
Link & URL Analysis
Checks all links against Google Safe Browsing and Spamhaus DBL. Detects shortened URLs, redirects, and domain reputation issues.
🟡 High Impact
📐
HTML Structure
Analyzes text-to-HTML ratio, image-to-text balance, hidden text, excessive whitespace, and broken HTML that can trigger filters.
🟡 Medium Impact
📬
Inbox Placement Preview
Sends a test to seed accounts at Gmail, Outlook, and Yahoo to show you exactly where your email lands — primary, promotions, or spam.
🔴 Critical Impact
🔄
Unsubscribe Compliance
Verifies one-click unsubscribe is present and functional. Required by Gmail and Yahoo for all senders with 5,000+ daily emails since 2024.
🟡 Medium Impact
📏
Subject Line Analysis
Checks subject length, spam trigger words, excessive punctuation (!!!), emoji overuse, and misleading RE: / FW: prefixes.
🟢 Moderate Impact
Spam Triggers
The 50 Most Common Spam Trigger Words in Cold Email
These words and phrases appear in 80%+ of emails that land in spam. Avoid them in subject lines especially.
🚫 High-Risk Subject Line Words
✗"FREE!" / "FREE OFFER"
✗"Make money fast"
✗"Guaranteed" / "100% guaranteed"
✗"Act NOW" / "Limited time offer"
✗"Click here" / "Click below"
✗"Double your income"
✗"No obligation" / "No credit check"
✗"You have been selected"
✗Excessive !!! or ??? marks
✗ALL CAPS words or phrases
✅ Use These Instead
✓Question-based subjects: "Quick question about [Company]"
✓First name personalization in subject
✓Reference a specific fact: "[Company]'s expansion to [City]"
✓Casual, conversational tone
✓Under 50 characters (visible on mobile)
✓Avoid RE: / FW: unless a genuine reply
✓1–2 emojis maximum (if any)
✓Use Spintax to vary subject lines per recipient
✓Test multiple variants — TuruMail A/B testing
✓Match subject to body content (no clickbait)
Pre-Send Checklist
The 30-Point Cold Email Pre-Send Checklist
Run through this before every new campaign. Copy and bookmark it.
🔐 Authentication & Infrastructure
✓
SPF record configured and includes sending IP
✓
DKIM 2048-bit key published in DNS
✓
DMARC policy published (at least p=none)
✓
PTR/reverse DNS set for sending IP
✓
IP not on any major blacklist
✓
IP warmup in progress or complete
✓
Sending volume within warmup limits
📋 List Quality
✓
List verified with TuruMail verification engine
✓
Invalid addresses removed (<1% bounce target)
✓
Role addresses removed (info@, hello@, etc.)
✓
Previous unsubscribes suppressed
✓
Prospects match your ICP
✓
No purchased lists (kills reputation)
✍️ Content
✓
No spam trigger words in subject or body
✓
SpamAssassin score below 3.0
✓
Subject under 50 characters
✓
Plain-text or minimal HTML
✓
Spintax variations created (10+ subject variants)
✓
Personalization fields filled for all contacts
✓
CTA is clear and single (one ask per email)
⚙️ Campaign Settings
✓
One-click unsubscribe link present
✓
Physical address in footer (CAN-SPAM requirement)
✓
Sending during business hours (9AM–5PM recipient timezone)
✓
Daily volume within warmup limits
✓
Reply tracking enabled
✓
Bounce handling rules configured
✓
Spam complaint webhook active

Run Your Spam Test Inside TuruMail

Every campaign you send through TuruMail includes a built-in spam score check, authentication verification, and inbox placement prediction.

Start Free Trial → Check Your IP Blacklist Status