I made use of mailing in a single of my website, It'll work carefully and it'll provide the receiver email extremely fast within our development server. After i transfer all of the file towards the original live server it will require very delay to provide the mail the initial server in network solution. How do i solve this it is crucial within the site.

This is dependent on may three reason,

1.Your server down time.

2.The e-mail that you are delivering does not exist.

3.The dns from the email that you are delivering your mail might have down-time.