pull that bone out of your face and read horndoc. lol
I belive the op is only having problems with sending a contact card (vcard) via sms. this will not work. the file is an attachment and those can only be sent with email (maybe mms)
I'm not sure why nobody ever standardized something to share contact info over sms. heck I just wish someone would make a standard period.
as to why it doesn't go over email I'm not sure. which screen were you starting the process from? can you send email with other types of attachments?