21621: The 'From' number has not been enabled for MMS

The From number is not enabled for MMS messaging.

The From phone number is not capable of sending MMS.

• Buy an MMS Capable phone number from the Twilio Console by filtering for "MMS" under "Capabilities".
• Check if you already have MMS capable numbers in the Twilio Console and use that number in your From parameter or Messaging Service.