Server Monitor

[hola123]

Hola amigos,

Descarge el software simple server monitor, pero no puedo configurar el correo me manda un error:

E-mail: agrege mi correo
Stmtp server: mail.nombre de dominio (mail.ejemplo.com.mx)
stmtp port : 25

deshabilitado use SSl/TLS, SMTP server requires a username and password

habilitado enable e-mails alerts.

Doy clic en test Settings, y me envia este error:

System eror: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

Por ayudenme . Gracias