AppRiver, a Florida-based cybersecurity company that focuses on email and web protection, agrees to be acquired by email security firm Zix Corporation for $275M (O'Ryan Johnson/CRN)

O'Ryan Johnson / CRN:
AppRiver, a Florida-based cybersecurity company that focuses on email and web protection, agrees to be acquired by email security firm Zix Corporation for $275M  —  Zix hopes to complete the $275 million deal by March 31 and in so doing will boost its channel presence 10- fold as it looks …