I'm not geeting email notification using the standard email accounts. I have set up to PUSH if that feature is available from the particular internet provider. Otherwise I use the fastest sync frequency available.
I noticed I wasn't geeting emails and so I went into settings and deselected these features and almost always get all the nitifications and new emails for the 3 accounts I have setup.
Any other settings I am unaware of that perhaps my 2 year old got to or is a hard reset the next step? I only like to do that as a last resort as iit takes about 2 days to get things back. I was thinking of just erasing the accounts and starting over with those. That is a lot easier