Hi Preethi,
please check whether they are providing a pop3s service.
When not you should try to use imaps-service.
Additionally check if your credentials are correct.
Please check with IS Administrators Guide how to configure an email port, might be that you have to specify some additional properties to the java command line in setenv.sh or custom_wrapper.conf or both.
Regards,
Holger
#Integration-Server-and-ESB#webMethods#webmethods-Protocol-and-Transport