How to Configure Email Forwarding for a Mailbox in Exchange 2016

Hi Kerry,
You can set Email Forwarding using Exchange Admin Center as well as PowerShell commands.
I am writing commands for mail Forwarding in Exchange 2016
Set-Mailbox -Identity "Dexter" -DeliverToMailboxAndForward $true -ForwardingSMTPAddress "dextermorgan@xyzabc.net"
The above command will forward all incoming mails from Dexter mailbox to dextertermorgan@xyzabc.net
Set-Mailbox -Identity "Dexter" -ForwardingSMTPAddress "carljonshon@company.com"
The above command will forward all emails sent to Dexter to his coworker carljonshon@company.com

hi
You can also do this using Exchange Admin Center. Just follow below steps:
1) GO to Recipients and then Mailboxes in Exchange Admin Center.
2) Select a mailbox for which you want to apply Email Forwarding and then click on Edit.
3) Then click on Mailbox features on mailbox properties page.
4) Now go to Mail Flow and select View Details to change settings of forwarding emails. You can also set maximum no of recipients here.
5) Now check the Enable Forwarding Checkbox and then click on Browse.
6) In Select Recipient, select a user whom you want to forward emails.
7) If you want to keep a copy of forwarding mails in your mailbox too then check the checkbox Deliver message to both forwarding address and mailbox.