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Received Header Chain Parser

Each Received header is one hop. Parsing them in order shows the message's journey from origin MTA to final delivery — useful for delays and spoofing checks.

2 hop(s), origin → destination
  1. Hop 2: from internal.sender.com → by mail.sender.com
    Sun, 25 May 2026 14:59:55 +0000
  2. Hop 1: from mail.sender.com → by mx.gmail.com
    Sun, 25 May 2026 08:00:01 -0700
What it does

Parses each Received line (from, by, with, id, for, timestamp). Computes hop-to-hop delay. Flags suspicious gaps and unexpected jurisdictions.

When to use

Investigating slow delivery. Investigating suspected spoofing or relay abuse.

FAQ

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You analyzed one send. Outsolvi analyzes every send, forever.

Subject scores, preview tests, header parses are one-shot. Outsolvi runs the same analysis on every email you send and surfaces patterns: which subjects open, which preheaders convert, which threads stall. From $7/user/mo yearly.

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Nate SummersCo-Founder, Outsolvi

Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi runs Tier 1 to 5 confidence scoring on every open, native in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.

Last reviewed May 25, 2026Editorially independent

We update these pages when the underlying mechanics change — new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.

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