> In other cases, a claimant may give notice of resignation which is contingent upon factors within the employer's control, such as hiring a replacement. The employer does not become the moving party by securing a replacement. The separation is still a voluntary quit.
This sentence makes it seem like California is one of those jurisdictions.
> Unless she was working under the assumption that they already were going to fire her.
It really seems like if your planning on suing your employer for wrongful termination, giving them a good reason to terminate you is a bad idea. You could always get those emails later via subpoena.