Domain DNS existing, moving only website

hello

i use the dns server from discountasp.net but
i have a trouble

previously i have redirection mx to another provider about exchange hosting

now, my registrar update the config with new dns server

once updated, how to configure to redirect mx toward my hosting exchange service ?

thx

 

You can go in the DNS Manager and edit your DNS records. This will allow you to point the MX records back to your Exchange email service.

 

thx

i m going to see this option

thx

 

and if i want to redirect my website toward asp.net website, shoud i to use ip adresse or url alternative ?

i don t see the ip adress about my new asp.net discount website