Sending Vulgar Defamatory Emails

My seperated disgrunted wife is sending out vulgar disgusting defamatory emails to my entire family.
Can i legally stop her of these despicable acts? Right down to nieces and nephews.

I have not done this to here family.

You may sue her in a civil action for defamation.

Is there any kind of cease order I can get for now?

Not that I am aware of. I would suggest you contact an attorney who practices civil lititaiton.