ETRN


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ETRN

(messaging, protocol)
("Extended TURN") An ESMTP command (first defined in RFC 1985) with which a client asks the server to deliver queued mail to the client via a new ESMTP connection.

ETRN supersedes the SMTP "TURN" command in the same way that ESMTP's "EHLO" supersedes SMTP's "HELO".