Godaddy Multisite 403 Forbidden

Hello Everyone,

I have checked around and have completed all the required steps to do the domain mapping thing work but still it shows the same error 403 Forbidden.

I have 3 Domains with one main domain where i have installed the Multisite.

http://www.maindomain.com = Main for Multisite

http://www.maindomain.com/site1
http://www.maindomain.com/site2
http://www.maindomain.com/site3

And i want to point these to

http://www.site1.com
http://www.site2.com
http://www.site3.com

When i remove the domains from the domain mapping all three working fine and when i add the site IDs and the unique domain name it shows the error 403 Forbidden.

I have bought a dedicated IP for my host and checked in the DNS Manager and all my domains has the same IP address.

It has been 48 Hours of buying the IP Address still no success.

Waiting for a response.

Thanks :).

https://wordpress.org/plugins/wordpress-mu-domain-mapping/