Email sending to websites webmail instead of company email

Hello all,

I work for a company that has their own internal email system, ie. everyone has their own company email (jeff@companyname.com.au, cindy@companyname.com.au etc. etc.).

However forms on their website, that's hosted on the WHM, are sending the emails to the cPanel webmail, instead of to the companies internal email. If the email account does not exist in the cPanel then it fails to send with a "No Such User Here" error message.

Is there a way I can make it send to the companies internal email instead of going to the websites mail?

Thanks for your help!