[sylpheed:33399] Why doesn't reply to list work here?

[Celejar]

Hi,

I constantly use the "Reply to mailing list" feature, to, well, reply
to mailing lists.  I do this all the time with the Debian user ML, and
it works fine, but I repeatedly tried doing so with the attached
message, and Sylpheed insists on replying to the sender.  I have no
idea why - the message contains the standard X-Mailing-List: and
List-Id: headers, which, AFAICT, are identical to the ones on all the
other d-u messages. Can anyone explain what's going on here?

Celejar
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