<%
my_string ="jon@doe.com, bob@bob.com, me@you.com"

MyArray = Split(my_string,",")

For i=0 to UBound(MyArray)
    loop_email = trim(myArray(i))
    response.write "Email: " & loop_email & "<br />"
Next
%>

Email: jon@doe.com
Email: bob@bob.com
Email: me@you.com

Letter: c
Letter: a
Letter: t