RFC 1985:SMTP Service Extension ...
RFC-Ref

connection


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... To save money, many small companies want to only maintain transient connections to their service providers. In addition, there are some situations where the client ...
... in the TURN command. As it stands, the TURN command will reverse the direction of the SMTP connection and assume that the remote host is being honest about what its name is. The security ...
... security loophole is avoided by asking the server to start a new connection aimed at the specified client. ...


... queue processing means that using an SMTP or ESMTP connection, the client may request that the server start ...


... start sending messages to that remote site, using another SMTP connection. At the moment, there is no requirement that a connection ...
... connection. At the moment, there is no requirement that a connection must occur, or that the connection must occur within a given time frame. This ...
... requirement that a connection must occur, or that the connection must occur within a given time frame. This should be noted in the case where there are no messages for the client host ...


... with some permanent and temporary failures. S: <wait for connection on TCP port 25> C: <open connection ...
... connection on TCP port 25> C: <open connection to server> S: 220 sigurd.innosoft.com -- Server SMTP (PMDF V4.2-6 #1992) ...



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