Free tools for
cold email.
Everything we've built to help you set up, write and send cold email that lands in the inbox. Free to use, no account needed.
- Use for free →NewWriting
Subject Line Tester
Score your subject lines, preview them in Gmail and iPhone inboxes, and compare up to 5 versions.
- Use for free →NewDeliverability
Blacklist Checker
Check any IP or domain against 19 email blocklists, with severity and removal links.
- Use for free →NewDeliverability
Domain Health Checker
Check SPF, DKIM, DMARC, MX records and blacklists for any domain, with step-by-step fixes.
- Use for free →NewWriting
Cold Email Analyzer
Paste your cold email and get a live score, word count, reading level and the fixes that get more replies.
- Use for free →NewWriting
Email Signature Generator
Build a professional email signature from 8 templates and copy it into Gmail, Outlook or Apple Mail.
- Use for free →Deliverability
Email Spam Score Checker
Paste your email copy and see which words and patterns could send it to spam.
- Use for free →Deliverability
Free Email Verification
Check whether email addresses are safe to send to before they bounce and hurt your reputation.
- Use for free →Setup
Cold Email Domain Generator
Enter your main domain and get secondary domains to buy for cold outreach.
- Use for free →Reference
SMTP Error Codes
What every 4xx and 5xx bounce message means, how serious it is and how to fix it.
Tools help. Infrastructure wins.
Deliveryman sets up your domains, mailboxes and warmup so your cold emails reach real inboxes, not spam.