If you are receiving emails fine but having problems sending emails you may need to use your carrier's outgoing server settings.  Listed here are some of the outgoing servers used by common cell phone carriers.

AT&T Wireless (now Cingular Wireless)
SMTP Server:  smtp.mymmode.com
Username: your mMode Username
Password: your mMode Password

Cingular Wireless
SMTP Server:  cwmx.com  (new and existing Cingular Wireless customers)
Username: leave blank
Password: leave blank

Rogers Wireless
SMTP Server:  smtp.rogerswirelessdata.com
Username: leave blank
Password: leave blank

Sprint PCS
You need to setup your email account on Sprint's website first.  Use that information for the Username and Password.
SMTP Server:  smtp.sprintpcs.com
Username:  your SprintPCS username
Password:  your SprintPCS password

T-Mobile
You may not need a Username or Password.  If you still have problems sending, contact T-Mobile and register your POP server and password.  Use the SMTP Username and Password that they give you.
SMTP Server:  myemail.t-mobile.com
Username:  leave blank or T-Mobile SMTP Username
Password:  leave blank or T-Mobile SMTP Password

Verizon Wireless
SMTP Server:  smtp.vzwmail.net
Username:  [your 10-digit cell phone number]@vzwmail.net
Password:  your password that you setup on the vtext.com webpage

Contact your carrier for more help.

Note:  As a courtesy, we provide information about how to use certain third-party products, such as cell phones, but we do not endorse or directly support third-party products and we are not responsible for the functions or reliability of such products.