Free tools for cold email
Verify and find emails, check the DNS records behind deliverability, and write better cold email. No signup needed.
Find and verify emails
Check an address before you send, or work out the right one.
Email deliverability
Check the DNS records and lists that decide whether mail reaches the inbox.
- SPF CheckerEnter a domain to read its SPF record, count DNS lookups and find problems before they hurt delivery.
- DKIM CheckerEnter a domain and, if you know it, the DKIM selector. We check the public key and explain any problems.
- DMARC CheckerEnter a domain to read its DMARC policy and reporting setup, and see what to change next.
- Blacklist CheckerEnter a domain or IP address to check it against major email blacklists.
- MX LookupEnter a domain to list its mail servers, their priority and the email provider behind them.
- DNS LookupEnter a domain to see its A, AAAA, MX, TXT, NS and CNAME records in one view.
- CNAME LookupEnter a domain or subdomain to see where its CNAME record points, step by step.
- Reverse DNS LookupEnter an IP address to find its hostname and check that forward and reverse DNS match.
Write cold email
Draft, test and polish the emails you send.
- AI Cold Email GeneratorDescribe what you sell and who you are writing to. Get a short cold email and subject line you can edit.
- Subject Line TesterPaste a subject line to check its length, wording and spam triggers, with a fix for each issue.
- Spam Word CheckerPaste your email copy to highlight spam trigger words and formatting that can push it out of the inbox.
- Email Signature GeneratorFill in your details, pick one of 8 templates and copy a signature that works in Gmail, Outlook and Apple Mail.
