My previous HTC phones had no problem with this function. I want Gmail notifications to never vibrate. Ever. When the ringer volume is up, it will work properly by using the only ringtone I have assigned it and nothing else.
However, the malfunction occurs when my phone goes into vibrate mode when I'm in the office. Despite the proper settings, my phone will vibrate when I get a new email.
Settings > firstname.lastname@example.org
> Notifications (checked) > Inbox sound & vibrate
> Label notifications (checked)
> Vibrate (unchecked
> Notify for every message (checked)