Both of those forms seem to be problematic, I got well over 60 bounces back all like this:

A message that you sent contained one or more recipient addresses that were
incorrectly constructed:


john.unger@wvsenate.gov: malformed address: ;john.unger@wvsenate.gov may not follow &#8232

This address has been ignored. There were no other addresses in your
message, and so no attempt at delivery was possible.

------ This is a copy of your message, including all the headers. ------

To: 
john.unger@wvsenate.gov



Gotta get the garbage characters out in front of the email addresses.