Rajesh Fowkar forced the electrons to say:
> While going through the man pages of Fetchmail I have come across the word
> ETRN. Can anybody tell me what is ETRN ?
The original RFC 821 SMTP had a command TURN, which turned an SMTP session the
other way. That is, the sender became the receiver and the receiver the
sender. This was to enable the receiver to flush any mails that were queued on
it and meant for the sender. Since this command was a security hazard, most
MTAs never implemented it. Then came ESMTP and with it, the ETRN command. This
command just told the other end to start flushing its mail queue. The other
end would just start processing the queue, and make new TCP connections if
necessary. The old one is not reused.
The main use of this command would be to, say
telnet bom3.vsnl.net.in smtp
EHLO <my FQDN>
ETRN bombay.retortsoft.com
QUIT
and all mails queued on bom3 meant for bombay.retortsoft.com will be
processed. This is, in sendmail, the equivalent of running sendmail -q
Binand
--
The prompt for all occasions:
export PS1="F:\$(pwd | tr '/[a-z]' '\134\134[A-Z]')> "
--------------- Binand Raj S. ([EMAIL PROTECTED])
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