Memory consumption

Hello,

I just ran into a strange problem:
(testmail is a simple mail with one big attachment).

[0] nokile:~$ du -h testmail 
49M     testmail

[0] nokile:~$ ulimit -S -v 400000

[258] nokile:~$ perl -e 'use MIME::Parser; use Mail::Message; Mail::Message->coerce((new MIME::Parser)->parse(\*STDIN));' < testmail
Out of memory!

[1] nokile:~$ perl --version

This is perl, v5.8.4 built for i386-linux-thread-multi

[0] nokile:~$ dpkg -s libmail-box-perl |grep Version
Version: 2.055-1


Using MIME::Parser alone works fine under much harder constraints. But
Mail::Message needs more than 400 MB to load the 50 MB mail file.
What's going on here? Is there a memory leak? Or should I use another
method to get a Mail::Message object?

Thanks in advance,

   --Nikolaus

-- 
Ja zu der Rettung von dem Genitiv!