As there is an option to configure a group mail and get the mails delevered to each member of that group by sending mails to group mail id. Is there any way, by which if member of that group sends mail to anybody outside the group, the receiptent should get mail from the group mail id and not from the individual mail id. Is there any configuration option for the above task, if so it would be helpful to me.

Hi Vijay, Which version of Exchange do you use? Basically you need to give send-as permission to users on the Group and ask users to select the group id in From address while sending mails. Find the step by step guide about it in Exchange 2003 Same procedure you can follow for Exchange 2007 also... How to Send As a distributionlist http://telnetport25.wordpress.com/2007/07/25/how-to-send-as-a-distribution-list/

Thanks Amit, for your valuable and usefull answer. We are using Exchange 2003, and i have done all the configurations that you have mentioned and it is working fine. Thanks again