Configure Email Forwarding in Exchange 2013 using GUI. Forward email sent to user8@xpertstec.
com mailbox to user@xpertstec.com email address.
Email Forwarding Exchange 2013 using GUI
1- Open Exchange admin center and Select recipients and select the mailboxes tab and select user8 and then click the edit icon.
2- Left side select mailbox features so, under Mail Flow select view details.
3- Select enable forwarding recipient and then select browse.
4- Select the email address you need to forward to and then click ok.
5- Click OK.
6- Click save and now you can test sending emails.
For more details click here