when I send those big HD sized photos from my iP4 the SoftBank mobile carrier here says I can't send anything over 1.5mb. That's fine if I'm on the road using the mobile network...I get it...but if I'm at home using WiFi on a regular ISP's network why am I still getting that message? Is my iP4 still using the mobile network to send mail? If so, how do I get my iP4 to use the mail server on my WiFi instead? Does the iP4 do this automatically? I thought regular IPSs had limits of about 5mb? Could it really be possible that both SoftBank mobile and NTT internet ISP both have crap mail limits?