Not receiving emails when a ticket is opened/created

[steve888]

Hi,

 

I'm wondering if someone else has encountered problems of not receiving emails when a customer opened/created/replied to a ticket?

 

I can receive emails fine from contact forms, and I can send and receive emails and alerts fine using the same email setup in the support departments. Only in the ticket area is having issue.

 

My setup:

 

Server 1 -> cPanel/WHM, WHMCS, NS1, NS2, MX-Autodetect

Server 2 -> cPane/WHM, NS3, MX-Local Exchange, Website is located

 

Prevent “nobody” from sending mail -> OFF (both servers)

 

 

Thanks in advance all! =)

[steve888]

I forgot to add that DNS are clustered where server 2 is set as standalone.