Definitions from Wikipedia (Open mail relay)

▸ noun:  An open mail relay is a Simple Mail Transfer Protocol server configured in such a way that it allows anyone on the Internet to send e-mail through it, not just mail destined to or originating from known users.


▸ Words similar to Open mail relay
▸ Usage examples for Open mail relay

▸ Idioms related to Open mail relay
▸ Wikipedia articles (New!)
▸ Words that often appear near Open mail relay
▸ Rhymes of Open mail relay

▸ Invented words related to Open mail relay