Create email distribution groups in the exchange server.
We use distribution groups located in Exchange to send email to a specific group of users.
“Distribution Group” It is the basic mail distribution group in the Exchange system. It is used only for sending mail.
“Security Group” There are 2 different groups in Active Directory. The first is a security group and the other is a distribution group. You can use it for both sending mail and for authorization.
“Dynamic Distribution Group” This is a mail distribution group in which members are not statically determined. Send to various property values for the transaction is made an automatic user account member.