How to Send a Text Message From Email to Set Up a Text Alert System

1. Type the cellphone numbers that have subscribed to your text alert system into the search box at the Telephone Number Identification website. This site will return the wireless carrier associated with each number. You can skip this step if you request the wireless carrier when a user signs up for your text alert system.
2. Locate the wireless provider's SMS gateway for each user. The following are gateways for major wireless providers in the U.S.:Alltel: message.alltel.com
AT&T: txt.att.net
Boost Mobile: myboostmobile.com
Sprint Nextel: messaging.nextel.com or messaging.sprintpcs.com
T-Mobile: tmomail.net
US Cellular: email.uscc.net (SMS)
Verizon: vtext.com
Virgin Mobile USA: vmobl.com
3. Create an email address consisting of the first cellphone number on your list, followed by the '@' symbol and the SMS gateway. For example, the email address for a Verizon Wireless number would similar to '5555551234@vtext.com'. Repeat this process for each cellphone number on your list.
4. Create a group or mailing list in your email client that includes the email addresses you just compiled for all of the subscribers to your text alert system.
5. Create a new email message as you normally would and type the group or mailing list name into the 'To:' input field.
6. Type the SMS alert in the message box. Limit your message to 140 characters or data will be lost in the translation from email to text.
7. Click the 'Send' button to send the alert as an SMS text to all members of your mailing list.