Hi, I have Sharepoint 2013, Nintex workflow 2013 and Exchange 2013.
In Nintex Global Settings, i set SMTP-server outgoing mail dns address my Exchange 2013 - exchange.mkc.ru
After run my workflows with notice, i see in ULS error : System.Net.Sockets.SocketException: Connection is not established, because destination computer rejected connection request 192.168.1.171:888.
Although port 888 is not specified anywhere. And my exchange is configured for port 25.
How Nintex gets port 888 when sending?