You can change the IP address or port number where a Scanner accepts outbound mail connections. You can also designate whether or not the Scanner accepts outbound TLS-encrypted connections.
To change Scanner outbound mail settings
In the Control Center, click Administration > Hosts > Configuration.
Under Hostname, click the name of the Outbound or Inbound and Outbound Scanner whose settings you want to modify and click Edit.
On the Edit Host Configuration page, click the SMTP tab.
In Outbound mail IP address and Port, enter the IP address and port number where you want outbound messages to be received.
In Optional Outbound mail IPv6 address and Port, select an optional IPv6 address and provide a port number where you want outbound messages to be received.
You can specify individual IPv6 addresses in any standard IPv6 format. IPv6 addresses are stored and displayed in shortened format.
Check Accept TLS encryption if you want the host to accept TLS-encrypted outbound connections.
You must configure an MTA TLS certificate and assign it to this Scanner before you can accept TLS encrypted outbound mail for filtering.
From the Certificate drop-down menu, select a certificate to authenticate the Scanner as a trusted source to clients sending over TLS-encrypted connections.
See About certificates.
Click Save or check Apply above settings to all hosts and then click Save.
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