>== Auszüge aus der Nachricht von  Gaute Hope vom 2014-11-20 18:48:
> 
> I am not sure this is a problem after all, as stated in qmails 'How a
> message is read', message reading is stopped either at the next From
> line or EOF.
> 
> The blank line does not play a huge role, but it is in effect added to
> all messages except the last one (which is terminated by EOF anyway).

You're right, as long as message reading is stopped by /From email
ascdate\/ rather than /\nFrom email ascdate \n/.

> 
> You could do a f.puts as you suggest below in stead, but it would not
> make much of a difference as far as I can see.
> 
> I think the mbox is valid as it is.
Well, as there is no real authoritative specification, it is at least a
valid sup mbox, isn't it? 
> 
> Now; mbox.rb does escape From lines in the body, but I cannot see how
> they are un-escaped when reading. Does RMail::Parser.read unescape
> these? Also, does mbox.rb skip the extra blank line or do messages get
> an extra blank line after being re-read? probably not critical, but
> tests should be run on this..
I used mbox for years, and never encountered any problems -- well,
that's not true. sup sometimes had trouble to show messages several
years old, they were still in the mbox and I can view them now after I
converted the mbox to maildir (using python's mbox and maildir modules,
I'm afraid). But that should be another issue, and I don't see any way
nor need nor resources to address it.

Let's close this issue.

Regards, Ruthard