I too have email receive issues that maybe someone can help me with.
Here's how the sequence of events unfold for my two email accounts:
1. I reboot the phone and all is good. I receive notifications every 5 minutes as I'm supposed to for new incoming messages.
2. About 2 hours later, the phone stops notifying me of incoming emails. The only way to know is if I unlock the phone to make a call, check the calendar, etc. Once I do that, it "wakes" the phone and it then notifies me that I have emails waiting.
3. About an hour or two after that, the phone stops uploading my emails and subsequently stops notifying me.
4. If I reboot the phone, it start all over again.
I contacted Motorola support a I received a short email asking me to send the phone back without a replacement in hand first. As you can image, that won't work. Any suggestions as to a fix I can do before I have to send it away? I'm still under the 1 year warranty. Thanks