How to Send Text Messages Online to Any Cell Phone

1. Determine the domain of the email address to which you should send your message. For Sprint, the domain is 'messaging.sprintpcs.com.' For Verizon, the domain is 'vtext.com.' For T-Mobile, the domain is 'tmomail.net.' For AT&T, the domain is 'txt.att.com.' Domains for other providers are available on their websites.
2. Use your recipients full 10-digit phone number for the address to which you should send the message. The address will be the 10-digit number followed by an '@' symbol, followed by the domain you determined in step 1. For example, if your recipient was a T-Mobile subscriber with the phone number 123-456-7890, type '1234567890@tmomail.net' as the 'To:' address to send the text message using your email.
3. Compose your message, Note that you can ignore the subject line. Also, do not use any special fonts or formatting. When you are done, just send the message. Your recipient will receive your message as simple text.