MSN/Hotmail accounts won't attach XML files



I have included a SUBMIT BY EMAIL button on a form. MSN & Hotmail account users have reported that they cannot attach and send the .xml file. When they cut/paste the xml info into the body text, I save in Word as an xml file. Then I use the Import Data function in Acrobat 8.0 and nothing populates and I get no error messages. Help! Thank you.