Emailing news automatically using multiple formats?

I found this thread but I'm not seeing the behavior it describes.

I would like to automatically download news and email it both to my iPad (epub) and to my Kindle (MOBI). If I set my default output to epub, it's emailed to the iPad only. If I set my default output to MOBI, it's emailed only to the Kindle.

If Amazon will actually do the conversion epub->MOBI, that would be great, but how do I get calibre to email the epub when the Kindle is listed as only accepting MOBI, AZW, etc.?

If Amazon won't do the conversion, is there a way to automate the daily process of converting the epub news file to MOBI and then mailing it over to Amazon?

Thanks,

--Stu