picture attachments not showing in email posts

I set up my WP.org blog for email posts. I set up an email address through Hostmonster, intalled the email plugin to retrieve my email, and sent out test emails without a hitch. Email posts via my blackberry actually DO get posted. However, picture attachments are stripped from the email and only the text is posted. Hostmonster said it is something on the WP end stripping the attachments.Yes, I do have the WP blackberry app and can post from that, but I want the ema capability too for times I don( have my blackberry. Is there something in the pluggin stripping thge pics? Or in the WP admin panel??