Emailing Phone Numbers as SMS

I've compiled a list of all the ways to message people's phones from your email client. Bellow is a list of ways to contact 414.555.1212:

To send an email to 414.867.5309:

4148675309@mms.att.net - AT&T MMS
4148675309@txt.att.net - AT&T SMS
4148675309@myboostmobile.com - Boost Mobile
4148675309@mms.mycricket.com - Cricket Picture
4148675309@sms.mycricket.com - Cricket SMS
4148675309@pm.sprint.com - Sprint MMS
4148675309@messaging.sprintpcs.com - Sprint SMS
4148675309@tmomail.net - T-Mobile SMS
4148675309@email.uscc.net - US Cellular
4148675309@vzwpix.com - Verizon MMS
4148675309@vtext.com - Verizon SMS
4148675309@vmobl.com - Virgin Mobile SMS