I need this to be able to send emails from Yahoo! Pipes which can only send data to a web service.
I don't think there is, but there are plenty that can be access over imap, which you should be able to call from yahoo (or failing that, you could write a web service to do that yourself).
1Can you show me any information stating I can use imap in yahoo pipes? Jul 18, 2009 at 19:48