Email alias for author credit

We have a team of freelance journalists who all have BLOX accounts and submit their articles through the CMS for review and publish. Their BLOX accounts use their personal email addresses like Gmail and Yahoo. We would prefer that these email addresses are not visible to the public when the article is published with the author's credit. If would be great if there was a way to choose an "email alias" that would be visible on the frontend of the website instead of the personal address. That way we could collect responses to the articles internally.