Email sending functionality not working on Production server

Question

Hi,

 

In my application(built using Asp.Net) i am facing an issue while sending emails and this issue comes up only on the Production server, locally on my machine the same functionality works fine like i can send and receive emails, the situation is there is no error i can see in the system on Production server.

I am using smtp configuration to send emails with port no. 25.

 

Any kind of inputs or help will be appreciated.

 

Thanks in advance.