It seems like messaging has a lot of issues. Here are some ideas to make it less of a problem. Also if you know someone who has problems receiving your messages send them to this article.
MMS = Multimedia Messaging Service ~ Wikipedia
Here is a great article for changing settings on your Android device. Click Here
MMS can have problems mostly due to WIFI carriers not supporting it. Here is an article on what to do to fix MMS problems. Click Here
Still having problems? Sometimes using Facebook's Messenger instead of Google's Messages will work better. Not a Facebook member? Try the WhatsApp messaging app.
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