I think this has been addressed but I haven't been able to find the post. I've got my yahoo, hotmail and gmail accounts setup in my n900 and have it set to check for mail every 5 minutes. It seems to receive emails sporadically regardless of the frequency I have it set on for retrieving email. Even going in and manually selecting send/receive takes a few attempts before it receives the email. I'm always connected either through GPRS or wifi. I've been trying to figure this out but no luck. Any help would be appreciated.