HTC is an amazing brand with amazing phones. They are reliable and have a good reputation in the market. You can configure the mms settings of your htc device:
1.goto Messages Tab
2. Select All Messages>Menu>MMS Options>Servers Tab and select New.
At & T MMS Settings For HTC:
Server Name: AT&T MMS 2012
Gateway: wireless.cingular.com
Port Number: 80
Server address: http://mmsc.cingular.com
Connect via MEdia Net
Send Limit: 600K
1.goto Messages Tab
2. Select All Messages>Menu>MMS Options>Servers Tab and select New.
At & T MMS Settings For HTC:
Server Name: AT&T MMS 2012
Gateway: wireless.cingular.com
Port Number: 80
Server address: http://mmsc.cingular.com
Connect via MEdia Net
Send Limit: 600K