What does it mean that the red rice mobile phone sends multimedia messages to show rejection?

Red rice mobile phone MMS can't be sent out, showing the reason for rejection:

1, the MMS file is too large, so the size of the MMS file can be reduced.

2. There is something wrong with the format of the MMS attachment. You can change the format of files such as pictures and music in attachments.

3. The remaining expenses are not enough to send this multimedia message, so you can recharge and pay before sending it.

4. It may also be that the current operators can't handle sending MMS.

The English name of MMS is MMS, which is the abbreviation of multimedia messaging service, meaning multimedia messaging service, and is often called MMS. Its biggest feature is that it supports multimedia functions and can transmit comprehensive content and information, including text, image, sound, data and other multimedia formats.