When I select multiple recipients, both iPhones and other phones, they are all marked with the green color, as if the message will be sent as an SMS.
Will the message be sent over iMessage to those who can receive it?
Are group messages sent over iMessage when possible
groupmessagessms
Related Solutions
If the messages are grey then they are being received. The colour doesn't change on the type they use. However if you use iMessage then the message back will be iMessage unless it stats above it that it is a message, as both users need to have iMessage enabled at the same time to use the feature, otherwise an SMS message is sent.
If you scroll up in the message history you will see what the last type of message used was. There will be a line break with iMessage or Message written in it. All messages after that point are dove via this method, until a new break is made.
Unfortunately the current version of iOS doesn't natively give us much control over something like that.
As I'm sure you are already aware of, it does allow us to turn off Group Messaging (and MMS Settings > Messages). However, that would defeat group texts in general - not just replies.
.....Maybe the next OS will?
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Best Answer
From what I have seen the minute a non iMessage user is added to a bulk message it sends all the messages via SMS. I suspect however this is dependant on the carrier more then apple.
From testing, the verification of whether a user has iMessage enabled is done before the message is actually sent.
My best advice is for you to try it out and see. I don't think there is really anyway to force it use iMessage.