I can't send an email with smtp

I want to send an email with ScadaBR, I use the name of the server that my company use to send emails in the "SMTP host", with the port 25. but I have an error "connection failed with the server"

This is the error:

Failed to send email titled "ScadaBR test email" to "FRWLT@bost.com". Message: "Mail server connection failed; nested exception is javax.mail.MessagingException: Could not connect to SMTP host: smtp-eu.app.corp, port: 25; nested exception is: java.net.SocketException: Unrecognized Windows Sockets error: 10107: connect"

the email destination is:FRWLT@bost.com the server name is : smtp-eu.app.corp

Can anyone help me please