Hi Gururaj,
Prior to config there are some prerequisites i.e the mail server in your installation must be SMTP-compatible, for text message services there is this data transfer service called SMS which could be defined in tcode SA14.
Precisely the SCOT configs are taken care by the basis guy, for your reference you can go through the following link for SMTP configuration.
http://help.sap.com/saphelp_nw04/helpdata/en/af/73563c1e734f0fe10000000a114084/content.htm
http://help.sap.com/saphelp_srm50/helpdata/en/ea/cb69245e44a04bb6567ee19f101746/content.htm
But I would suggest that you should take assistance of some experienced basis consultant prior configuring the SMTP for INT.
Do let me know if the problem occurs while the configs.
Best Regards--
Tarun