>Any ideas of how can I make ETRN work with dynamic IP addresses outside
>my LAN
If it's Exchange, there's some hack or patch or tool that allows
Exchange to pickup all mail via a POP box.
>(or not ETRN, if I store the mails for him & deliver them in the
>next cycle it will be OK)
won't work, all Imail relaying requires fixed ip, ETRN or not.
Here's an idea, sort of modeled on "POP-before-SMTP".
Let's call it "pgm-alias-before-ETRN", mui �l�gant�, si?
When he wants to do an ETRN run, he has a PERL program that finds out
what his current DSL ip address is, the PERL program calls up your
Imail, sends a msg containg his ip in the subject line to a pgm alias
whose pgm writes his current ip to your NT host file, waits a sec,
and then he sends ETRN, Imail finds his new ip in hosts and dumps the mail.
Even cooler and simpler would be a PERL program on his end that
simply checked his ip address every 1/2 hour (I assume his ip lease
is a day or more, doesn't matter) and when it detected a change in
his ip address, it sent the "Subject: ip.ad.dr.ss" to the Imail pgm
alias that rewrites his domain's ip address in NT hosts file.
With the second approach, you and he wouldn't even need to screw
around with ETRN since Imail will check NT hosts for every relay
attempt and just forward the mail to his server as soon as Imail
finds the current ip address in host file.
Any PERL heads here want to contribute these two PERL programs for
the DSL end and Imail end? Can't be a 100 lines all done.
Len
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