Email to SMS/TXT address list
This post is more than 18 months old. Technology changes quickly, so some of this content may be out of date (but that's not always the case). Please verify any technical or programming information against the current release.
The website http://www.emailtextmessages.com/ keeps a database of most of the email addresses that correlate directly to a txt for mobile phones. However, their version is in HTML - and I see no feed. I’ve compiled the list into a CSV file so that its easier to use in programming. Do visit their website and click on an ad to support their hard work.