Email & DNS Tools

Build a valid SPF TXT record by selecting your mail providers and IP ranges. No server-side requests, runs in your browser.

Set your DMARC policy, reporting addresses, and alignment to generate a ready-to-publish DMARC TXT record. Runs in your browser.

Paste the full raw headers from any email to trace the delivery path and check DKIM, SPF, and DMARC authentication results. Runs in your browser.