There are several MMS problem threads on here, but none seem to get at the issue I'm having. I can receive MMS messages just fine, however I cannot send them. What is bizarre is that, from all indications, the phone thinks they are being sent. I get no error message and it even attaches a timestamp to the message. How can I find out what's going wrong and correct it?
Potentially necessary details:
- Phone: Samsung Galaxy SII
- OS version: 4.0.4
- Network: Credo (via Sprint)
- MMS app: Default Android app; I did briefly switch to using Facebook Messenger but recently switched back