Returned mail? why?

Hello,

I wonder why WWW4mail failed to fulfil a request like this:
TSOURCE
http://msdn.microsoft.com/library/devprods/vs6/vc++/vcsample/_core_alphabetical_list_of_mfc_samples.htm

There is nothing wrong with the URL. It points to a valid page that
neither requires authentication nor is script-generated.

the server replied with the following:
------Begin message:--------
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    Date: wed, 26 May 1999  06:55:20
    From: Mail Delivery Subsystem <MAILER-DAEMON@web.bellanet.org>
    To: <pavel.bure@ru.ru>
 Subject: Returned mail: unknown mailer error 9
--------------------------------------------------------------------------------

The original message was received at Mon, 24 May 1999 13:35:37 -0400
from h250.zenon.net [195.2.83.119]

   ----- The following addresses had permanent fatal errors -----
"| ~/bin/www4mail"
    (expanded from: <www4mail@web.bellanet.org>)

   ----- Transcript of session follows -----
lynx: Invalid Option: -head"
lynx: Invalid Option: -head"
/http://msdn.microsoft.com/library/devprods/vs6/vc++/vcsample/_core_microsoft_foundation_class_library_samples_index.htm
- 4/: nested *?+ in regexp at /home/www4mail/bin/www4mail line 3680.
554 "| ~/bin/www4mail"... unknown mailer error 9
-----end message------

PS: Fortunately, Agora-server retrieved that particular page without
errors. But www4mail servers are better :-)

Best regards,
 Pavel AKA PavelBure                         mailto:pavel.bure@ru.ru
--------------------------------
Sent by Z-Mail - http://zmail.ru

Received on Wednesday, 26 May 1999 14:17:52 UTC