or you can find the list of the e-mail addresses for the carriers to send pics to.
for example for Sprint it's <mobilenumber>@pm.sprint.com that will send a pic to somebody's phone. The list has been posted here before, but if you can't find it here is the list I have.
that's the way I do it, since 3 e-mail addresses can be added to each person, I send a txt to all my contacts asking what carrier they are on so I could properly set them.
[FONT='Verdana','sans-serif']Alltel - #@message.alltel.com
AT&T - #@mms.att.net
Boost Mobile - #@myboostmobile.com
Nextel - #@messaging.nextel.com
Sprint - #@pm.sprint.com
T-Mobile - #@tmomail.net
US Cellular - #@mms.uscc.net
Verizon - #@vzwpix.com
Virgin Mobile - #@vmobl.com
Helio - #@myhelio.com
Cingular: @cingularME.com
Cricket: @mms.mycricket.com
Intercel: @sms.pscel.com
Metro PCS: @mymetropcs.com
Mid Missouri Wireless: @sms.mid-mo.net
Midwest Wireless: @clearlydigital.com
MTA Wireless: @sms.mtawireless.com
Plateau Wireless: @smsmail.plateautel.net
Qwest Wireless: Does not support text messaging via email
Rural Cellular Corporation: @utext.com
Southern Linc: @page.southernlinc.com
SunCom: @tms.suncom.com
Telstra: @onlinesms.telstra.com
U.S. Cellular: @email.uscc.net
Union Cellular: @union-tel.com
VirginMobile: @vmobl.com
Alaskan Communications Services: @msg.acsalaska.com
Alltel: @alltel.net
Blue Grass Cellular: @sms.bluecell.com
Cellcom: @cellcom.quiktxt.com
Cellular 2000: @sendmesms.com
Cincinati Bell: @gocbw.com
Edge Wireless: @sms.edgewireless.com
Golden State Cellular: @gscsms.com
Illinois Valley Cellular: @ivctext.com[/FONT]