Originally Posted by krazichinaman
You can set the max size limit on Handcent.
Settings > Send message settings > Maximum MMS size
I have noticed that people on AT&T can only receive mms at 500k or less (I'm sending pics from Tmobile).
T-Mobile i think went up to 1MB max size but AT&T uses 600KB. Most other carriers are only 300KB (maybe 350KB) still however however.
I generally lower the resolution of my photos too for exactly that reason. No point in sending "5mp" images for people to view on a ".3 - .8mp" screen.
I figured 2-3mp is good enough to save to email later on or view on the PC as well as send via MMS.