For testing purposes I want send mail to my localhost user account rather than my webserver. I am unsure how to do this using mail.app. Any help would be appreciated.
@Tautologistics
OSX does have a built-in MTA (SMTP server), to turn it on you can type:
sudo launchctl start org.postfix.master
then you can send mail to localhost like you desire
sample showing an SMTP server running from my machine running 10.6.1
>telnet 127.0.0.1 25
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
telnet: Unable to connect to remote host
>sudo launchctl start org.postfix.master
>telnet 127.0.0.1 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 machinename.example.com ESMTP Postfix