Actually yes t-mobile is doing something that almost every service provider does, filter their (your) mail, and willdisallow certian types of file extensions and larger files. My view is yes their trying to keep you using their tones and so forth but there's ways around this like making your own site among others. Good luck with sticking it to the man

Yes. .mid, .midi, all the same. midi files are the audio files used for polyphonic ringtones.

Isnt Mid Short For Midi Aka Polyphonic?

When I send an email to my phone via ([email protected]) with an attached midi file (aerosmith.mid) it is received as a multimedia message, but when I try to save the file to my phone to use as a ringtone it says there's an illegal character in the filename. I looked at the details of the message and the file extension has been magically changed to .midi" (yes, tmobile has put a double quote in it). I can't edit the file extension so no matter what name I give the file, it won't let me save it to my phone to use as a ringtone. Is Tmobile doing this on purpose to force people to use t-zones to download midi files? I could put them on my website but I don't want to pay for t-zones.