Hi Subbu,
Have a look at:
SAP Library - SAPconnect (BC-SRV-COM)
1. In SAPconnect administration (transaction SCOT), choose Settings→ Confirmation of receipt.
2. You have a choice of two settings:
Confirmation of receipt as a rule
...
a. Select SAPconnect expects confirmation of receipt of Internet mails.
b. If necessary, specify recipients or Internet domains that are not expected to send confirmation of receipt.
Confirmation of receipt as an exception
...
a. Select SAPconnect does not expect confirmation of receipt of Internet mails.
b. If necessary, specify recipients or Internet domains that are expected to send confirmation of receipt.
3. Choose .
Regards,
Hugo