I had a programmer set up a form mail script which will allow for the use of an smtp server for outgoing mail. I did this for my Manual Classified Ad Submission Service service so people could submit the details of their ad after payment. I wanted to be able to use an outgoing smtp server because often the email deliverability is better using a good smtp server than using the php mail from the server. You can even use a Gmail outgoing email server with this script. See here for details on how to do this.

Here are the features of the free script.

You can use your own smtp server for outgoing email for better deliverability.
You can send multiple attachments.
You have a drop down list for categories.
You can send the form submission details to any email address.
You can send the form submission details to any cc email address.
The submitter receives a thank you email.
You can customize the subject and the body of this confirmation email.
You can customize the url the submitter is sent to after submission.
You can customize the pop up thank you alert type message the submitter receives.
after they complete submission.
You can customize the from name.
You can customize the from email.