I have spoken with Apple, AT&T business (my iPhone and all related costs are provided by my job) and at least four different tech support departments within AT&T consumer. Changed from Comcast to ATT high speed internet with in home wireless network about 8 weeks ago. My iPhone receives emails via wi-fi but will not send. I must turn off wi-fi, reboot my phone, and when in 3G only the messages go out just fine. I have no problem sending and receiving emails from any other wi-fi connection - just the new one at home. The last tech support person a short while ago said I need a service tech to come at at a cost of $119.00 but I'd go back to Comcast before spending that kind of money. So I turn to you, the community. Any help on this out there?