XF 2.1 How to override Register popup

A. Fig Lee

I want to customize Register popup - the reason I want to do it that hotmail rejects emails from my server as a spam. I failed to convince hotmail that we are not spammers.
So, the idea is to add a message that hotmail emails are not recommended.
Perhaps this is a stupid question and may be easily solved, but I'm new to xenforo.
Thank you
Top Bottom