This has had to been asked before but what is the rational of adding a .txt to the filename of attachments sent by the mobility server to an iPhone or to a Droid 2 phone? If I access the same email message via webaccess, pop3, or IMAP the attachment is normally named but viewing the same email on a iphone or a droid the filename of the attachment is renamed with an .txt at the end of the name of the attachment name and thus the attachment cannot be viewed.