iMessage says not delivered (but is delivered)?

same problem here

Same problem. Took to Apple Store, genius stumped.

I have also exactly the same problem.

I have tried to reset network settings, restore multiple times my iPhone but I have always have the issue.

Even in wifi, the issue is still there ...

Another issue : I have setup imessage to send a SMS if the imessage delivery failed but it does not work also, imessage is only displaying me the not delivered message.

I don't know what to do ...

Count me in as also having this problem as is my husband.

Since I only text from my phone and AT&T is charging a flat fee on all texting I just went ahead and turned off iMessage until things get worked out.

Same thing here. I think this is tied to the 4S dropping 3G connection problem. I think it drops the data but just sits there and tries to send the iMessage (which it then does once the data clicks back on) but displays that it was Not Delivered on my device. All of this just started happening with-in the last week or two as well.....

Also same problem here - in NYC and it started yesterday on my AT&T iPhone 4S, iPad 1, and Messages beta app.

It happens when I'm on 3G or wifi (and I've tried 3 different wifi networks). I've also tried deactivating iMessage, restarting it, and re-activating iMessage but still have the same problem.

I have an AT&T iPhone 4 running iOS 5 and I am having the exact same problem. It started last weekend my iMessages to other iOS users are showing up as Not Delivered even though people are responding to them. Around the same time my SMS messages from non iPhone users are being delivered a day late.

had the same problem. after experimentig and testing it came out that the trouble was caused by mail adress used. if putting another adress, not the main one, iMess worked perfectly. Have to check it, but i'm almost sure that it was iMess for Mac that started the problem. Means that beta version for mac os has to be worked on

thx

What fixed this issue for me, was this (and I tried everything):

• log out of messages beta (on mountain lion beta)
• loged back into messages beta on a different (lion) mac
• presto issue fixed!

Hope this helps some of you.

Were you able to log back in on your own Mac after you had logged in somewhere else? I logged out of my account on my own mac, and it solved my issue - as soon as I log back in on my own, the issue comes back... don't want to have to go through the hassle of logging onto anothe rmac, only to have the issue come back when I come back to my own mac.

TIA.

Having same problem, along with my husband. Took my ipad and iphone and showed the genius and he said if it keeps happening, bring mac mini in along with ipad and iphone so they can troubleshoot. Seems like a lot of work to fix something that started happening all of a sudden, no changes in email addresses or phone numbers to either phone or ipad.

ASJER - I think your fix is the answer. I haven't tried logging back in to iMessage on my Mac because I'm still testing my iPhone and iPad. You do have to log out though, not just close Messages.

Here is how I fixed mine. I have 2 MacBooks and and iPhone. On the Messages app on the MacBooks I went to Preferences>accounts and disabled them. I then quit the application. Next I went to ~/library/messages and deleted everything in there. I then re-opened the messages app and re-enabled my iMessage account. All is well now.

I turned it off on my ipad and it works fine for me now. (For those users who don't use iMessage on their Mac)