Do you have the max file size to send via MMS?
- MMS via our Messages API for US Short Codes, 10 DLC , Toll-Free Numbers
The max file size is between 600kb and 1MB for US and Canada Short Codes
The max file size is 600KB for Toll-Free Numbers
The max file size for 10 DLC is carrier dependent we recommend 740KB maximum
Note: although MMS can be successfully delivered to the carrier, it can be rejected by the device. Ensure that the device is up to date and that there aren't any apps or settings that prevent larger media files from being received.
Developer's guide how to send MMS