# Free Email Tools

23 free tools built by deliverability nerds for cold outbound teams. Test inbox placement, generate DNS records, write better email copy, and quantify the impact — no signup, no upsell.

## Flagship tool **Placement Test**  
Send one test email. We grade placement across Gmail, Outlook, Yahoo, and iCloud in 60 seconds.  
[Run a placement test](/content/tools/placement-test/index.html)

## Tools
- [**Placement Test**](/content/tools/placement-test/index.html) 
  Test inbox placement across Gmail, Outlook, Yahoo, and iCloud.  
- [**Email Health Checker**](/content/tools/email-health-checker/index.html) 
  Audit SPF, DKIM, DMARC, MX, and blacklist status in one go.  
- [**Blacklist Checker**](/content/tools/blacklist-checker/index.html) 
  Check if your domain or IP is on any major email blacklist.  
- [**SMTP Test Tool**](/content/tools/smtp-test-tool/index.html) 
  Test SMTP server connectivity, auth, and TLS.  
- [**Email Validator**](/content/tools/email-validator/index.html) 
  Verify syntax, MX, and deliverability of any email address.  
- [**Deliverability Test**](/content/tools/email-deliverability-test/index.html) 
  Run a full test: inbox placement, SPF, DKIM, DMARC, and content checks.  
- [**Deliverability Audit**](/content/tools/email-deliverability-audit/index.html) 
  A guided, step-by-step health check of your DNS, blacklists, and sender reputation.  
- [**Email Reputation Checker**](/content/tools/email-reputation-checker/index.html) 
  Check if an email is valid, disposable, or spoofable, with a trust score.  
- [**DMARC Generator**](/content/tools/dmarc-generator/index.html) 
  Generate a DMARC record for your domain in seconds.  
- [**SPF Generator**](/content/tools/spf-generator/index.html) 
  Build a valid SPF record for all your sending sources.  
- [**AI Email Writer**](/content/tools/ai-email-writer/index.html) 
  Generate personalized cold email copy with AI.  
- [**Subject Line Generator**](/content/tools/subject-line-generator/index.html) 
  Generate ten subject line variants in seconds.  
- [**Subject Line Tester**](/content/tools/subject-line-tester/index.html) 
  Score any subject line for opens and spam risk.  
- [**Spam Words Checker**](/content/tools/spam-words-checker/index.html) 
  Scan your subject line or email body for spam trigger words.  
- [**Email Copy Shortener**](/content/tools/email-copy-shortener/index.html) 
  Tighten your cold email without losing the point.  
- [**Email Signature Generator**](/content/tools/signature-generator/index.html) 
  Generate a clean, professional email signature.  
- [**Email Signoff Generator**](/content/tools/email-signoff-generator/index.html) 
  Generate the right closing line for any email tone.  
- [**Email Finder**](/content/tools/email-finder/index.html) 
  Find any professional’s email by name and domain.  
- [**Universal Email Generator**](/content/tools/email-generator/index.html) 
  Generate every common email format from a name and domain.  
- [**Gmail Name Generator**](/content/tools/gmail-name-generator/index.html) 
  Generate clean Gmail addresses for new sending inboxes.  
- [**Open Rate Calculator**](/content/tools/open-rate-calculator/index.html) 
  Calculate and benchmark your campaign rates.  
- [**Inbox Calculator**](/content/tools/inbox-calculator/index.html) 
  Estimate how many sending inboxes your volume needs.  
- [**Warmup Inbox ROI Calculator**](/content/pricing/index.html) 
  See your projected ROI from email warmup before you commit.

## Stop guessing. Start landing in the inbox.
Warmupinbox runs the placement testing, sender warmup, and reputation monitoring behind the scenes — so you can focus on the email, not the deliverability stack.