I would consider that option, I would need to get my client's approval to the additional cost. Can you provide me with an estimate?
The issue for me is that this is my client's host provider (I didn't purchase the package) and they would have to move their website and email etc...
I got this response from the host company, do you think it would make a difference? If so, I will recommend it to my client:
"Your site is on an older windows server....and unlike Linux - there are some areas where PHP does function differently.
One thing to consider would be whether or not your site and mail program would run better on our Linux hosting plans.
The bottom line is that whatever program you are using for your mail must use smtp authentication in order to send mail from the site."