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Mailing List Scenario Connected: An Internet Encyclopedia
Mailing List Scenario

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Mailing List Scenario

Mailing List Scenario

First each of two mailing lists are expanded in separate sessions with different hosts. Then the message is sent to everyone that appeared on either list (but no duplicates) via a relay host.

         Step 1  --  Expanding the First List

            R: 220 MIT-AI.ARPA Simple Mail Transfer Service Ready
            S: HELO SU-SCORE.ARPA
            R: 250 MIT-AI.ARPA

            S: EXPN Example-People
            R: 250-<ABC@MIT-MC.ARPA>
            R: 250-Fred Fonebone <Fonebone@USC-ISIQ.ARPA>
            R: 250-Xenon Y. Zither <XYZ@MIT-AI.ARPA>
            R: 250-Quincy Smith <@USC-ISIF.ARPA:Q-Smith@ISI-VAXA.ARPA>
            R: 250-<joe@foo-unix.ARPA>
            R: 250 <xyz@bar-unix.ARPA>

            S: QUIT
            R: 221 MIT-AI.ARPA Service closing transmission channel

         Step 2  --  Expanding the Second List

            R: 220 MIT-MC.ARPA Simple Mail Transfer Service Ready
            S: HELO SU-SCORE.ARPA
            R: 250 MIT-MC.ARPA

            S: EXPN Interested-Parties
            R: 250-Al Calico <ABC@MIT-MC.ARPA>
            R: 250-<XYZ@MIT-AI.ARPA>
            R: 250-Quincy Smith <@USC-ISIF.ARPA:Q-Smith@ISI-VAXA.ARPA>
            R: 250-<fred@BBN-UNIX.ARPA>
            R: 250 <xyz@bar-unix.ARPA>

            S: QUIT
            R: 221 MIT-MC.ARPA Service closing transmission channel

         Step 3  --  Mailing to All via a Relay Host

            R: 220 USC-ISIE.ARPA Simple Mail Transfer Service Ready
            S: HELO SU-SCORE.ARPA
            R: 250 USC-ISIE.ARPA

            S: MAIL FROM:<Account.Person@SU-SCORE.ARPA>
            R: 250 OK
            S: RCPT TO:<@USC-ISIE.ARPA:ABC@MIT-MC.ARPA>
            R: 250 OK
            S: RCPT TO:<@USC-ISIE.ARPA:Fonebone@USC-ISIQA.ARPA>
            R: 250 OK
            S: RCPT TO:<@USC-ISIE.ARPA:XYZ@MIT-AI.ARPA>
            R: 250 OK
            S: RCPT
                TO:<@USC-ISIE.ARPA,@USC-ISIF.ARPA:Q-Smith@ISI-VAXA.ARPA>
            R: 250 OK
            S: RCPT TO:<@USC-ISIE.ARPA:joe@FOO-UNIX.ARPA>
            R: 250 OK
            S: RCPT TO:<@USC-ISIE.ARPA:xyz@BAR-UNIX.ARPA>
            R: 250 OK
            S: RCPT TO:<@USC-ISIE.ARPA:fred@BBN-UNIX.ARPA>
            R: 250 OK

            S: DATA
            R: 354 Start mail input; end with <CRLF>.<CRLF>
            S: Blah blah blah...
            S: ...etc. etc. etc.
            S: .
            R: 250 OK

            S: QUIT
            R: 221 USC-ISIE.ARPA Service closing transmission channel

                               Scenario 7


Next: Forwarding Scenarios

Connected: An Internet Encyclopedia
Mailing List Scenario

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