Public bug reported:
The "outer" mail does not have any date header set then, the date field in the "forwarded" message is preserved.
** Affects: mailman Importance: Undecided Status: New
Normally, the outgoing MTA will set a Date: header in the outgoing message, but it seems preferable to copy the Date: header from the original post.
I can't tell if that's what you're asking for, but there are only two options that make sense: copy the original Date: or set the current Date:. Unless there is argument to the contrary, I'll go for copying the original.
** Changed in: mailman Importance: Undecided => Medium
** Changed in: mailman Status: New => Confirmed
** Changed in: mailman Milestone: None => 2.1.23
** Changed in: mailman Assignee: (unassigned) => Mark Sapiro (msapiro)
** Branch linked: lp:mailman/2.1
** Changed in: mailman Status: Confirmed => Fix Committed
** Changed in: mailman Status: Fix Committed => Fix Released