hi .... I'm android system support. I have buy the T-Mobile G1 before and I have change to HTC hero yesterday. But I still facing a same problem with this 2 phone. That was a problem connect to my company email account. It can receive an email but cannot sent out when using the Sim Card connect to 3G. But if using WIFI that is no problem for receive and sent email. Did anyone have facing this problem before. Can anyone give me any solution to solve it. Thank You.