Thanks, that was really starting to confuse me.
Well, there's a different problem than I thought. I must have been playing with settings and forgot to put some things back the way I left them. There were settings for both UNIX and Windows. When I commented out the UNIX and set only the Windows, mail no longer gives a "Message Sent" response.
Instead, I get the following error:
Warning: mail() [function.mail]: Failed to connect to mailserver at "health.umd.edu" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set() in f:\Inetpub\wwwroot\new\docs\submittest.php on line 40
As far as I know, the SMTP and port settings are correct.
PS (edited in):
I am taking the SMTP and port settings from my e-mail account settings in Thunderbird, in case there are any differences to take into account when dealing with servers...
PPS (edited in):
Does PHP need to provide a username/password to the e-mail server in order to access it? If so, how?