[horde] sent mail attachment stripping not working in horde 4.1.3

[LingaMoorthi Ankam]

Hi,
    I am using horde 4.1.3, when i sending a mail with attachment thru
horde, in sent-mail folder it's showing attachment stripped
but i am unable to view the attachment.
In my imp/config/prefs.php strip_attachments value is 0.

But if I send the mail thru any other email client then it's showing
properly in sent-mail folder in horde.

Thanks,
LingaMoorthi A