Hi,
I've detected a problem when I use "Forward as attachment" option from Squirrelmail and view this mail in RoundCube.
In the inbox view of Roundcube, I can see the attachment icon near message, but when I open it, I only see the text, but not the attachment.
If I open this mail with Mozilla Thunderbird or Squirrelmail, I see the message and the attachment correctly.
Only happen when I use "Forward as attachment" from Squirrelmail. If I add an attachment manually, I can see it correctly in Roundcube.
Regards