Alvaro Herrera <alvherre@alvh.no-ip.org> writes:

> On 2019-Jun-28, Alvaro Herrera wrote:
>
>> I think a real solution is to parse the message header, look for the
>> Content-Length, and determine mbox-ness by looking for "From" only past
>> that many bytes; that seems to match what other mail parsing tools do.
>
> Sorry, I misspoke: there's no such thing as Content-Length.
> It's Content-Type/boundary that needs to be watched for.  Only consider
> that the file is an mbox if a "^From " line appears after the boundary
> end marker (which seems to be defined as "the boundary string followed
> by two dashes --").
>
> Here's a sample message, BTW:
> https://www.postgresql.org/message-id/raw/3ad5ba71-d200-96da-f903-7e3b16416140@lab.ntt.co.jp
> (username "archives", password "antispam").

I'm not keen on writing (more) ad hoc MIME parsing code, so if you can
phrase this in terms of GMime API (or at least MIME parts) it would be
great.

d
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