jasongive,
It's not Abyss Web Server's fault. It's PHP which is executing your script. You need to configure your SMTP server in php.ini so that the mail() command can send messages correctly.
If your SMTP server requires SSL or authentication, mail() is not sufficient for sending emails. More advanced libraries are available to send emails in that case.
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Support Team
I think you should have to know the php program so that some of your questions will be answered.