Hello Sowbhagya,
for short (as a fast work a round): if you have processed the list, use the mail (with the envelpoe) button
Her you are in SAP OFFICE.
Enter eh E-Mail address you wanted and chosse Recip.Type A and send the Messages.
With the Transaction SOST you can the see the SAPconnect Send Requests
With the send button you can send the E-Mail. This can alos done by a Batch Job and the Programm RSCONN01.
Hope that helps
Regards,
Thomas