For some reason, unbeknowst to me, I managed to successfully send 2 custom tones to my phone. I followed my usual procedure, which only changed by one step, I had to make sure it had a 'tag' (in WinAmp) in the #2 position; on the ride side of WinAmp.
All the rest of the time, I mainly get a message back like this:
Delivery to the following recipients failed permanently:
* 1234567890@vzwpix.com
Technical details:
SMTP: host 69.78.65.166: (null)
Anything I can do differently to insure successful delivery to my phone?