If they use Gmail as well and you have access to their computer/account you can enter your E-Mail address as a custom "From" address. See Adding a custom 'From' address for details.

How to allow someone else to send emails in my name?
I would like to know as to what has been the experience of using direct data access components like devart's MyDAC which allows a direct connection to the mysql server rather than through the client library or ODBC.
