I'm using the same Mail and Mail_Mime libraries as you - but this 
doesn't make any difference since those libraries would not be used to 
render this message.  Double check to make sure your copies of 
mime_drivers.php in both horde and imp are the same as the .dist files.

ok, but could you at least specify wich version of additional 
libraries are using? maybe is a pear module incompatibility (I'd 
prefer to think php itself as "portable")

Renders fine for me here also.  Since you are the only one 
experiencing this behavior, you will have to track this down yourself.

other packages status:



Mail 1.1.9

Mail_Mime 1.3.1

php-4.4.0-2

this is how it is rendered for me in HEAD (as today, 12-10-2005)

This message is rendered perfectly for me in HEAD.

this is an example message.

Please provide a sample message which exhibits the broken behavior.

bug in framework::mime::structure::parseTextMimeMessage



condition: message/rfc822 incapsulated in other mime parts.



this method should return a mime_message as if decoded from 
imap_fetchstructure but the results differ if there is a nested rfc822 
message.

this prevents the message from being displayed correctly if, for 
example, is contained in a signed S/MIME as the function will rebuild 
the content using the parseTextMIMEMessage.



The incompatibility is raised by this:

the fetchstructure doesn't split up the part of the attached rfc822, 
while the parseTextMIMEMessage does: this way the rfc822 viewer fails 
to parse the messge, as it was expecting a raw text message. Also this 
will prevent the correct download of the rfc822 attachment