XF 1.2 How to properly ban emails?

[The Dark Wizard]

I've noticed that a lot of spam bot emails end with .ru

As an example I can ban *@mail.ru

However how do I get all domains that end in simply .ru?

 

[Jeremy]

*@*.ru should function, but I haven't tested it.

 

[The Dark Wizard]

*@*.ru should function, but I haven't tested it.

Works perfectly thanks!

I can't sign up on my own site when I do test@test.ru as an example.