HTC Aria User Manual page 106

106 Email
Tap Select ringtone if you want your phone to play a notification sound when a new

email message arrives. On the ring tone menu, select a ring tone specific to new email
messages. The ring tone plays briefly when selected. If you don't want a ring tone
to play when you receive a new email message, tap Silent. To confirm your ring tone
selection, tap OK.
Select Vibrate if you want your phone to vibrate when you receive a new email

message.