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

 

[Max Taxable]

You can edit the "email required" phrase the register form uses, to say anything you want.

 

[A. Fig Lee]

You can edit the "email required" phrase the register form uses, to say anything you want.

Thank you for your response.
I was trying to find it. Is it in phrases?
Under administration or in the source code?

 

[Max Taxable]

Is it in phrases

Correct. In ACP