Errors when trying to send e-mail when using Ubercart I am aware of the many other:


  Unable to send e-mail. Please contact the site administrator if the problem persists.


Questions that have been asked however, I believe my situation to be a bit different.

Situation:

I have been tasked to make some updates to my companies website. They are hosted and use cpanel for management. I have been working with the Drupal portion of the site and have been getting the Unable to send e-mail error when trying to do any of the following:


Create a user account
Retrieve lost password
Use any of the e-mail functions in Ubercart (order confirmation ect..)


Question:

Are there any settings that I should be looking to change or is this something that needs to be configured in a config file. I have set and e-mail up for (Home » Administration » Store » Configuration) in Ubercart.

Things I have tried:

I have set and e-mail up for (Home » Administration » Store » Configuration) in Ubercart. I have also set up the site e-mail (Home » Administration » Configuration » System).
So after much searching I came across this post:

http://shutterfreak.net/blogs/olivier-biot/2010-06-24/configuring-smtp-server-sending-mail-drupal

Apparently issues with the default SMTP are quite common. This post explains how to install and configure "SMTP Authentication Support module" and PHPmailer to basically override the default.

Worked great for me.