Email, Exchange, OWA, 'No Match Found' error while sending to multiple recipients

I'm getting a 'No Match Found' error when attempting to send to multiple recipients in the Exchange 2010 OWA.

The Exchange 2010 Outlook Web App uses semicolons(;) instead of commas(,) in between multiple email addresses when sending. Try entering semicolons and then attempt to send the message again.

Keywords:Exchange OWA Webmail multiple recipients no match found   Doc ID:48034
Owner:Joshua M.Group:University of Illinois Technology Services
Created:2015-03-03 14:21 CSTUpdated:2016-12-19 15:33 CST
Sites:University of Illinois Technology Services
Feedback:  8   5