Kerio Connect - Administrators Guide - Kerio Software Archive

Services in Kerio ConnectFigure 1Services in Kerio ConnectIf any services available in Kerio Connect is already running on the server, you havetwo possibilities:• change the traffic port for one of the services• reserve a different IP address for each instance of the service (on the same port)However, assigning the IP addresses is not recommended while using DHCP.What services are availableEach service is available in both unsecured and secured version (encrypted by SSL).following sections describe individual services.TheSMTPSMTP protocol server is used for sending outgoing email messages, for receiving incomingmessages and messages creating via mailing lists in Kerio Connect.Two methods can be used for encryption of SMTP traffic:• SMTP on port 25 with STARTTLS, if TLS encryption is supported — traffic on port 25starts as unencrypted. If both sides support TLS, TLS is started via STARTTLS.• SMTP on port 465 with SSL/TLS — the traffic is encrypted from the start.88