Iphone 3Gs Version: 3.1.2 Carrier: AT&T 5.6 MMS almost always fails. I can send/receive regular text messages. I can receive MMS text messages, just whenever I try to send them it almost always fails. I spent a couple of hours talking to people about this on the phone: First AT&T rep: She was able to send me MMS messages but I could not send them out. She reset my account, that did not work. So she then handed me over to an apple tech person. Apple Tech person: Tried resetting various settings on the phone. We wiped my phone and installed fresh everything like factory account new. Didn't work, so he handed me off to a higher up tech person. Higher up tech person: Ultimately ended up installing a program on my computer that monitored my iPhone and printed out it's activity while it was functioning, like processes and failures. It logged the failed MMS texting and I emailed it to the tech guy as directed. He couldn't solve it but wanted to go over the log with some people. I never heard back from him, even after a couple of weeks and sending emails. So here I am. MMS texting almost never works, still. Anyone else experience this?