Re: [Exim] Relaying at ISP SMTP - ANSWERED

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著者: Dave C.
日付:  
To: Paul M Foster
CC: exim-users
題目: Re: [Exim] Relaying at ISP SMTP - ANSWERED
On Sun, 18 Nov 2001, Paul M Foster wrote:

[..]

>
> But more importantly, when the offending line was taken out of the
> config file, Exim at last asked for relay from the server. The dialog I


There is no concept of 'asking' for relay.

With SMTP, you connect to the server, you say "I have MAIL FROM: this
email address", and I want to send it to (RCPT TO) this address".. Then
the server decides A. If the domain in the recipient is one of its own
domains that it always accepts, and if not, then if you (almost always
determine by your IP address, occasionally if you have use SMTP AUTH)
are allowed to relay through that server. If neither is true, it rejects
you.

> captured from it showed this conclusively, and it was the only change I
> made to the config file. Furthermore, the server was a _different_ one
> from the one in the sendmail dialog. I submit that there _is_ something
> about the tcp/ip dialog between you and the smtp server that tells it to
> relay or not. I don't really care to monitor all the packets to find
> out, since it now works. However, just as proof, see the following smtp
> dialog I just captured with that Exim config file:
>
> Exim version 3.32 debug level 2 uid=500 gid=500
> Berkeley DB: Sleepycat Software: Berkeley DB 3.2.9: (January 24, 2001)
> LOG: 0 MAIN
>   <= paulf@??? U=paulf P=local S=352
> delivering message 165YAY-0004Xz-00
> Connecting to smtp.quillandmouse.com [207.155.248.14.25] ... connected
>   SMTP<< 220 marlborough.cnchost.com ESMTP [ConcentricHost SMTP Relay 1.14] ready at Sun, 18 Nov 2001 15:01:48 -0500 (EST)
>   SMTP>> EHLO quillandmouse.com
>   SMTP<< 250-marlborough.cnchost.com Hello tamqfl1-ar4-076-029.tamqfl1.dsl.gtei.net [4.41.76.29], pleased to meet you
>          250-8BITMIME
>          250-AUTH=LOGIN
>          250-SIZE 10485760
>          250-ONEX
>          250-XUSR
>          250 HELP
>   SMTP>> MAIL FROM:<paulf@???> SIZE=1388
>   SMTP<< 250 <paulf@???>... Sender ok
>   SMTP>> RCPT TO:<foster@???>
>   SMTP<< 250 <foster@???>... Recipient ok
>   SMTP>> DATA
>   SMTP<< 354 Enter mail, end with "." on a line by itself
>   SMTP>> writing message and terminating "."
>   SMTP<< 250 PAA13963 Message accepted for delivery
>   SMTP>> QUIT
> LOG: 0 MAIN
>   => foster@??? R=smart_route T=remote_smtp H=smtp.quillandmouse.com [207.155.248.14]
> LOG: 0 MAIN
>   Completed

>
> Paul
>
> --
>
> ## List details at http://www.exim.org/mailman/listinfo/exim-users Exim details at http://www.exim.org/ ##
>
>


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