To Send-as another email address:


Open a new Email > Options tab > Show From button > click on FROM > select Other E-Mail Address > click From > select the address in the Address Book > click OK > OK.


 Please make sure the user does not type the address but select it from Global Address List. If there's already an entry on the FROM button, please delete it. Once you send as another user successfully, you can use the address on the FROM button to send as this user from now on. 


**This requires IT approval and a request form in order for IT to grant permission to another users email.