i have had no problems with t-mobile usa and fmms. t-mobile uses the epc.tmobile.com as the mms apn so you dont even have to make a 2nd connection. apn: epc.t-mobile.com mmsc: http://mms.msg.eng-tombile.com/mms/wapenc all the rest of the settings blank
Operation failed (-2, 'Name or service not known') Please check your settings.