We have recently introduced service ticket for customer, and intend to use a user account name email@example.com, and whenever any service ticket will be raised then email should be generated with the name firstname.lastname@example.org, which ultimately forward email to a security group, & all the group members will receive alert notification. My domain is @internaldomain.com. But I need to create account email@example.com sitting in the firstname.lastname@example.org, for that to receive email from email@example.com what should be done in exchange 2010 environment. As per understanding I need to perfom the followings:
1. Accepted domain needs to be created for externaldomain.com in the internaldomain.com
2. User account needs to create firstname.lastname@example.org
3. e-mail address policy needs to be created @externaldomain.com, and apply that policy to groups/users.
I need to know what could be other steps involved like any DNS entry and how can I apply email address policy to groups, cause I am not intended to create seperate OU to apply email address policy, appreciate your guideline.