BizMailNetStart diagnosis

Private local analysis

Understand an email's technical headers

Paste the headers from a received message. We'll identify reported authentication results and explain their limitations. Your pasted text stays in this browser.

Examine received message headers

Paste headers only—not the message body. Raw text isn't uploaded or stored by BizMailNet. The export omits raw headers and visible email addresses, but may include server names. Review before sharing.