Im also having this problem. my boss asked to send him a pic of the new kitchen equipment today and come to realize that everytime i try to send the pic it says unable to send pic generic network error
If your picture mail was working but is not anymore here are a few steps to follow.
Power phone off and pull battery - wait two minutes - replace battery and power up device - Allow the phone to register - Allow two minutes - then Update Profile, this is different on each device. Allow it to finish the update profile. If it fails you will need to call in. Next delete any messages if you have them stuck in your outbox. Then try to send a picture message to your own phone. If you get an error message write that message down and call us from another phone at 888-211-4727.