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Email Header Analyzer

Paste raw email headers to inspect message fields, authentication results, delivery hops, and slow handoffs before escalating a mail issue.

What To Paste

Use the full original message headers from your email client or provider. The tool runs in your browser and does not upload the pasted content.

Review Signals

Check authentication, unexpected missing fields, delivery hop order, and slow handoffs between servers before opening a support ticket.

Header Fields

0

Received Hops

0

Authentication

Unknown

Slowest Hop

0s

Message Summary

Status
Paste headers to analyze.

Warnings

  • No warnings yet.

Hop Timing

Hop Delay Received line
Analyze headers to see delivery hop timing.

Ready.