Free Email Deliverability Tools

Generate a DMARC DNS TXT record to protect your domain from email spoofing and phishing.

Generate an SPF DNS TXT record to authorize which servers can send email on behalf of your domain.

Generate DKIM DNS records and cryptographic keys to verify your emails haven't been tampered with in transit.

Create a professional HTML email signature that works in Gmail, Outlook, and Apple Mail.

Calculate how many domains and mailboxes you need for your cold email campaigns.

Calculate the revenue impact and cost savings of warming up your email accounts before cold outreach.

Scan your email for spam trigger words and get a deliverability score with fix suggestions.

Paste raw email headers to check SPF, DKIM, and DMARC authentication and trace the email's routing path.

Test your email subject line for deliverability risks. Get a score and actionable checklist to land in the inbox.

Audit your email deliverability with a 41-point interactive checklist. Copy and share with your tech team.