I\'m setting the body of an email using values from a form
firstname = bob
lastname = dole
ebody = \'First Name: \' + firstname + \'\\r\\n\' + \'Last
I would expect outlook to try and output this as html/rich text so in that case you would need something like the following (including a urlencoded br tag):
firstname = bob
lastname = dole
ebody = 'First Name: ' + firstname + '%3C%2Fbr%3E' + 'Last Name: ' + lastname
window.location.href = 'mailto:myemail@mycompany.com?subject=test
email&body=' + ebody;