Free tool · No signup
Email Header Analyzer
Paste the raw headers of an email to trace its path, measure delays between servers, and see how it did on SPF, DKIM and DMARC.
Parsed entirely in your browser — nothing is uploaded or stored.
Stop guessing at deliverability
utobo Email signs every message with SPF and DKIM, aligns DMARC, and shows you delivery status in one dashboard.