Send Email Through a SMTP Server
You can do a couple things to make it more likley that mail will be delivered from the server running NolaPro. Emails from NolaPro aren't sent from the web server program (Apache). The messages are handed off to the default mail program configured for php. This is usually postfix (an SMTP program). Postfix will resend undelivered messgaes by default. To help your mail get delivered try:
1) If you have a static IP address for your NolaPro server, contact your ISP to have a reverse DNS address set up. Have the word mail in thr address, for example mail.yourbusiness.com.
2) Add to your domain name DNS setup an SPF (Sender Policy Framework) record (http://en.wikipedia.org/wiki/Sender_Policy_Framework). Thid record will say that mail delivered from specific IP address with your domain name is valid.