Email forwarding explained briefly

Email forwarding allows you to forward an email to the inbox of another email address. This means that the forwarded email will be available in the inbox of the email address to which you are forwarding it.

There are two types of email forwarding: manual and automatic. 
Manual forwarding allows you to forward individual emails that you have already received and read to another email address. You can also forward any email that you have already sent or saved in a folder within your email account. 
Automatic forwarding means that every incoming email is automatically forwarded to the inbox of another email address.

You can forward an email as many times as you like – to any email address.
Depending on your email program’s settings, any attachments in an email will be forwarded automatically.