Forge
deliverability
Free tools for email senders, marketers, and ops teams. Check your DNS records, test your spam-folder placement, and ship better mail. No signup, no email capture — just diagnostics.
• Spam tester
Inbox
SPF / DKIM
Inbox
placement test
Send a test email to a curated seed pool across Gmail, Outlook, Yahoo & more. Get a per-provider breakdown of inbox vs. spam vs. promotions.
Run a test →
• DNS checker
SPF / DKIM
DMARC audit
Validate every authentication record for your sending domain in one shot. Catches misconfigurations, weak DMARC policies, and 27 DNSBL blacklists.
Audit a domain →