When editing an xform:According to the documentation, you can send the xform post email to several users by separating the email with semicolon.If I do this in EPiServer CMS 7, I get an error message: "email@example.com;firstname.lastname@example.org" is not a valid email address.
Yes, that's a known bug, #97154. It was actually activated by the triage team this morning, so it hasn't been know for very long. But yes, we have a report on that problem.
Still, thanks for reporting it.