How to Obtain new Email, Forward to Previous one

[WWGD]

Hi All,
I remember reading somewhere ( unfortunately can't remember the precise place) about some email program/service that would forward to it , emails from an existing account. Say I have Address1@mail1.com as an existing address. This service, with account , say Address2@mail2.com purportedly would ( obviously) receive mail sent to it, and would, as well, have all email sent to Address1@mail1.com forwarded to it. Anyone know of any such EDIT: free service?

 

[stoomart]

You can configure Gmail to pull in email from other accounts using POP3:

https://support.google.com/mail/answer/21289