"there were errors, message not sent" error message

Looks like the messaging server is not recognizing your phone number - not linking it with any carrier. Send me the first 6 digits of your phone number (area code + 3 digits after) and the name of your wireless carrier and I will be able to fix it.

However, if you recently switched carriers (wireless companies) and brought the number with you then you will have to use your new carrier's full mobile email address to your handset. Here's a list (<number> is your phone number of course):

AT&T <number>@mobile.att.net
Cingular <number>@mobile.mycingular.net or <number>@mobile.mycingular.com
Verizon <number>@vzwpix.com
Sprint PCS <number>@messaging.sprintpcs.com
T-Mobile <number>@tmomail.net
Alltel <number>@alltelmessage.com or <number>@message.alltel.com
CellularONE <number>@mobile.celloneusa.com
Green's Communications <number>@pager.schmobile.com
GTE Wireless <number>@messagealert.com
Nextel <number>@messaging.nextel.com
Omnipoint <number>@omnipointpcs.com
Qwest <number>@qwestmp.com
SMF/Schuylkill Mobile Fone<number>@pager.schmobile.com
SouthernLinc <number>@page.southernlinc.com
Suncom <number>@tms.suncom.com
Rogers Wireless (Canada) <number>@pcs.rogers.com

<number> is your 10-digit phone number, just digits:
no dashes, no spaces, just digits alone, i.e. 1235551212@mobile.att.net
or 1235551212@mobile.mycingular.net