Have you looked into Boxcar? You can set it up with your email accounts(s) so that it'll give you a po)-up notification when you get an email AND it has various sounds that will go off when that pop-up happens. So you can hear when you get mail.
It also will allow you to set up to receive notifications for other things too, not just mail (e.g. Google Voice) - with sound also.
I like it so much I just have my Mail set to retrieve manually, as Boxcar notifies me. why waste time/data/battery...?
If that's not what mean, sorry to interrupt. If it is - hope it helps.
Marilyn
Sent from my iPad using iPF