Update: There seems to be no way to disable Group Messaging for iMessages. Even if you have Group Messaging disabled, it will still send as a Group Message if all of the recipients are iMessage-able. Be sure to keep an eye on the color of your send button (blue for iMessage, green for SMS) to know which one you're using!
|Do you send group text messages? Do you send messages to the same group of people often? Social Chair SMS manages your group-text lists, and helps you effortlessly send out messages to multiple people.|
"Group Messaging" works under the assumption that you'd like your group texts to function as a text-message chat room, in which all of the recipients can also chat to each other. Since this behavior might be unexpected, it unfortunately could be the cause of a serious social snafu as well. As a group message sender, if you have Group Messaging enabled, you send a slightly-bigger version of your group text to your recipients, that also contains the information for the other recipients getting the text. If one of your recipients also has Group Messaging enabled, she should be able to see who the recipients were, and when she replies to the group text, she will reply to all of the recipients.
To clarify, the reply-all only happens if both the sender and the receiver/replier of the text message have Group Messaging enabled. The other recipients do not need to have it enabled to receive the reply all.
So, now that we know what Group Messaging is, you can make an informed decision about whether you'd like it on. If you keep it on and reply to a group text message, you may be replying to everyone. If you keep it on and send a group text, you are setting up other iPhone 4 users to possibly be able to reply-all to your message.
To enable/disable Group Messaging, open the Settings application on your iPhone. Scroll down to the section titled "Messages" (with the SMS app icon) and tap on it to open the Messages settings. About two-thirds of the way down the screen, you should see "Group Messaging"; you can turn the switch to on or off to enable or disable Group Messaging.
We hope this has been helpful -- I for one was completely baffled the first time I received a reply-all message, especially because I didn't recognize the number for the sender! Also, if you're reading this because you send a lot of group text messages, we hope you'll check out our app on the App Store for sending group texts: Social Chair SMS.