Relaying e-mail to a different mail server. There are websites that offer an e-mail address and forwarding service for a fee or at no cost because they are advertiser supported. These sites let you choose a permanent e-mail address, and all mail sent to that address is forwarded to your e-mail address with your current ISP. If you change ISPs, you do not have to notify everyone that you have a new address, because the address they have does not change. You only update your account with your forwarding provider to relay your mail to the new address. Launched in 1995, Pobox.com was the first e-mail forwarding site.