How to Send Free Large Text Messages Online

1. Navigate to your online email provider and sign in to your account.
2. Open a new email. In the 'To' field of the message, enter the text message email address of the person you're sending to. Use the person's ten-digit cell phone number for the first part of the address and the SMS gateway extension for the second part. For example, if you were sending to someone who's provider was AT&T, the address might look like this: 5555555555@txt.att.net.
3. Write your message in the body of the email. If your message contains more than 160 characters, it will send it in multiple messages to the recipient.
4. Send your message to the recipient.