_:n64694ce9f6b6494eb7e83ce3681be347xb5
<http://schema.org/text>
"You have to move remote management to another port and forward port 443 to your Exchange server.  You don't need any other ports open inbound unless you have remote clients using IMAP or POP3."
<https://community.spiceworks.com/topic/2080216-exchange-sonicwall-activesync-could-not-open-connection-to-server>