🚀 go-pugleaf

Here's a funny.  On Wednesday morning, my hard drive filled up (don't
ask).  This meant that a substantial amount of mail was left waiting on
post.demon, and let me say at the start I've no reason to believe that
any was lost whether downloaded or not - thanks, Graham, for a far more
robust product than stock Demon KA9Q !

However, one of the mails which was downloaded successfully was written
to disk with the RFC821 envelope address (in the "From " line) belonging
to one of the mails which was deferred, and which I conjecture had been
in the process of being downloaded in parallel from the other punt.

It's obviously not a serious bug, but I thought it worth mentioning in
case anyone else feels it worth tidying up some time.

Nick