Hi,
Recently upgraded from HTC INC to Fascinate mainly because of the screen size and better sunlight visibility. My HTC worked just fine, both with 2.1 and later with 2.2 Froyo, never had any problems with any of POP3 and GMAIL accounts - they were set to check for new messages every 5 minutes.
It is a different story with Fascinate. Gmail accounts sync just fine as far as I can tell you, but my POP3 account which is set to sync every 5 minutes, does not sync unless I turn the phone "On" or manually open the account. Please note, I am not using Wi-Fi, just 3G and GMAIL sync without problems at the same time giving me a ring every time new message arrives. Wi-Fi and Bluetooth is disabled on my phone.
This is unacceptable and this bug (along with many others on this phone) should be fixed ASAP! One of the main reasons people buy a smartphone is because of email. First, Samsung decided to go without any message lights on this phone, and now for whatever reason we even can't have a signal that a new message has arrived unless we check and refresh manually each POP3 (and I believe I tested it with IMAP as well, which btw does not allow you to move messages to folders which is the main reason you'll use IMAP, but that's another story) account !?!
Verizon/Samsung, please fix this mail sync issue!!!!