Wesley Peng: > Hello, > > As a mailing list server, how does postfix deal with google's mailbox > formats? > > for exmaple, all mailboxes below are indeed the same one: > > [email protected] > [email protected] > [email protected] > [email protected] > > Can list server know them and treat them as just one?
Email RFCs say that the address localpart semantics are defined by the receiver, therefore Postfix does not assume that the following addresses resolve to the same mailbox: [email protected] [email protected] [email protected] Postfix also does not assume that the following domains are equivalent. gmail.com googlemail.com To signal domain equivalence, the receiver should use CNAME records or some other explicit mechanism. Wietse
