Non-ascii characters in email addresses are not supported by the edX platform (as in you cannot sign up for an edx account with a non-ascii email address:

![screen shot 2013-10-08 at 3 26 03 pm](https://f.cloud.github.com/assets/1985317/1292144/8b90a53e-304f-11e3-8f7e-0c07036534b6.png)