Error while sending mail from SAP???

[#1]

Hello Friends,

     We are getting fallowing fallowing error while sending mail from SAP.

Message cannot be transferred to node SMTP due to connection error (final)

Message no. XS816

Diagnosis

Due to a technical fault, the system could not set up a connection to the RFC destination smtp.caribbean-airlines.com: 25. Therefore, the message could not be transferred to node SMTP.

System Response

The system was unable to transfer the message.

Additional information of the node used (in the system language of the node):
Check port and mail server for SMTP nodes

Procedure

Check the connection from SAP system to node SMTP. Perhaps the node is not assigned to the correct RFC destination. If so, correct this in Customizing.
Otherwise use RFC destination management to check the RFC connection to destination smtp.caribbean-airlines.com: 25.
If R/3 is in productive operation, it is advisable to reroute provisionally to another node.
You should therefore notify your system administrator.

we have configured SMTP in our system then tryed to send a mail, it throws an error like above.

Please help me to solve this error.

Regards,

FARKATH C

[JPReyes]

This is a very common message.

Check that you can reach port 25 and that the IP address of your SAP system is populated on the relay agent of the SMTP Server.

Follow instructions on,

https://wiki.sdn.sap.com/wiki/display/SI/SAP+to+send+external+mails

Regards, Juan