Mail relay

A term that describes an alternate server that distributes e-mail. Often, a mail relay is used for distributing spam because of the resources it takes to distribute millions of e-mail messages and to help hide the identity. Today, most servers do not allow mail relays.

Blacklist, E-mail, E-mail terms, Filtering, Internet terms, MTA, MX record, RBL, SMTP, Spam, Whitelist