Just for sh!ts & giggles I deleted everything under the 'Voicemail Email' tab. Then I re-entered my email info/mms email info/sms info. And this time I did get an email, an mms notification and an sms notification.

But wait.... the mms message said 'the corrupted part audio/vnd.wave;name=msg0000.wav' was removed from the message. And the email message also gave me an error when trying to play the attachment.