I still have a long pause before the MMS actually sends. Is this something that will be fixed? Or something that will always happen? I remember some of my old phones (non-iPhones) doing the same thing.
For anyone that is getting the exclamation point and failure to send message. Call ATT have them remove your texting plan and re-add it. Worked perfectly for me after.
Nothing here... same red "!" and messages sent from others never get to me. Called AT&T, they starting IMing with tech support who looked at my account. Then the rep removed something then reapplied, rebooted my phone and still nothing. The tech got back to the rep and said I would have to wait 24 hours. I still feel something is wrong with my account.... oh well.
MMS still doesnt work here in Salt lake City, UT. Iphone 3G 3.1, updated carrier to 5.5 and rebooted (even restored my phone to original still doesnt work)
I was having this same issue... you have to call. The computer program that took the Opt-Out code off all the iPhone accounts for some reason skipped yours. I signed on to live chat and had it fixed in a couple of minutes