Message Number 816 in SOST

[Former Member]

Dear Team,

From our SAP ,When ever any any SO create ,notification generate Some reports etc , it send the mails from SAP server to our internal mail ID and Some external (vendor).

But occasionally some mails is stuck .

When I check via SOST , Its give in Message Number 816 ,

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

When we check the Long Text , its give below message .

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 192.168.17.345: 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 192.168.17.345: 25.
If R/3 is in productive operation, it is advisable to reroute provisionally to another node.
You should therefore notify your system administrator.

But our Mail server is working perfectly.

Why these mail Stuck .

Regards

[Former Member]

please check u r mail sever permission for communication to sap server and also check the 25 no port is open in both server

nainesh