Building email threads from unix mailboxes

Josiah Carlson jcarlson at
Mon Oct 18 18:46:56 EDT 2004

> Is it enough to get the In-Reply-To header for each message and build a
> dictionary of { Message-ID: message } pairs?  Or is it more complicated
> than that?

To be RFC 2822 compliant, In-Reply-To and References are sufficient. 
Other clients may add more headers, and not all clients are RFC 2822

 - Josiah

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