How do I have my husbands text messages on his phone sent to my email? He's cheating and I need proof.

I'm sorry to hear that. I don't know how you would do that. In the meantime, could you not get your hands on his cellphone some time (when he is in the shower or otherwise occupied) and find incriminating messages and send them to your phone?

I've been trying not yet successful. Thank though.

Do you need proof for divorce/alimony purposes? Cuz I'm not sure such a message sent from his phone to your email will hold up in court because there is no proof that he necessarily sent them...

Sounds like you already have proof. Why would you stay with someone like that? What could hearing his messages or reading his texts do to help you in any way? Find someone honorable. The world is full of people who don't cheat.

If a person has strong intuition then usually its true.
I'm really sorry to hear that. If you know in your heart this is true then why would you need proof?
I would give him one chance to confess and if he didn't then, you'd know he'd never tell you and a relationship without guilt when hurting your partner isn't worth having.
Even if you found out and you tried again you'd then know in your heart you had to literally force the truth out of him when really his own conscience should be eating away at him.