jquery script checking if email seems incorrect e.g. hotmail.con

[unwashed potato!]

on my php form i have the email checked if it's a valid format, however this doesn't check whether it appears to be a correct address, such as if someone types @ntlwirld.com. This will get through as correct, but clearly there's a typo.

I've seen it before on sites that pick this up and say "did you mean @ntlworld.com", but can't find anything online that'll do this.

i'm hoping someone on here might know of something. Ideally I want it in jquery

thanks