Re: Exchange 2000 relay issue

From: Patrick Genova [MSFT] (pgenova_at_online.microsoft.com)
Date: 05/03/04 

Date: Mon, 3 May 2004 14:17:29 -0400

Hi Keith,

That is correct, no way to do this in Exchange 2000 without an event sink.
We added this feature in 2003. 

-- 
Patrick Genova
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"Keith" <Keith@nowhere.com> wrote in message 
news:%23pEkhBSMEHA.1644@TK2MSFTNGP09.phx.gbl...
> Thanks Dennis, in that case, without using any of the event sink 
> configurations, this can't be avoided in Exchange 2000 ?
> i.e. if someone use this method to relay a very large file, I have no way 
> to stop it in advance ?
>
> Thanks
>
> Keith
>
> "Denis McDowell [MSFT]" <denismcd@online.microsoft.com> wrote in message 
> news:%23zZQD9RMEHA.752@TK2MSFTNGP10.phx.gbl...
> When the email address is enclosed in brackets (<user@domain.com>), the
> server sees "no domain specified" and appends the local domain
> (user@domain.com@localdomain.com). In effect, the server is looking for a
> mailbox with alias "user@domain.com ". When no mailbox is found, an NDR is
> issued.
>
> SMTP does not perform a directory lookup, it will accept any mail destined
> for the local domain. It is possible to use an event sink to perform this
> type of lookup. Be advised that, depending on the amount of traffic you
> server handles, this could substantially increase the processing overhead
> used by SMTP.
>
> http://support.microsoft.com/default.aspx?scid=KB;EN-US;823866 may provide
> some more insight.
>
> -- 
> Denis McDowell [MSFT]
> "Keith" <Keith@nowhere.com> wrote in message
> news:OpS8a3RMEHA.2456@TK2MSFTNGP12.phx.gbl...
>> Hi all
>>
>> Can someone suggest me a solution, if possible, to avoid this kind of
> relay although this message was not actually relayed and
>> delivered to testtest@recipient.com from our mail server with IP address
> 111.111.111.111 ?
>>
>> The reason for that is if someone was trying to relay a large message 
>> with
> this method, the whole message will still came though to
>> the server before it stop it.  In that case, this can occupy lots of
> bandwidth and cause a NDR to send out but not passing though as
>> well......although it's not actually allowed.
>>
>> >>> RSET
>> <<< 250 2.0.0 Resetting
>> >>> MAIL FROM:<spamtest@[111.111.111.111]>
>> <<< 250 2.1.0 spamtest@[111.111.111.111]....Sender OK
>> >>> RCPT TO:<"testtest@recipient.com">
>> <<< 250 2.1.5 "testtest@recipient.com"@mydomain.com
>> >>> DATA
>> <<< 354 Start mail input; end with <CRLF>.<CRLF>
>> >>> (message body)
>> <<< 250 2.6.0  <rlytest-1083594641-27237@abuse.net> Queued mail for
> delivery
>>
>>
>> ie. Can the server send out
>> 550 5.7.1 Unable to relay for testtest@recipient.com
>> before the connection sends out DATA directive ?
>>
>> Thanks in advance.
>> Regards
>> Keith
>>
>>
>
>
>

Relevant Pages

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  • Re: Exchange 2000 relay issue
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  • Re: Exchange 2000 Relay Issue 2
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    (microsoft.public.exchange2000.admin)
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  • Re: Exchange 2000 relay issue
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    (microsoft.public.exchange2000.admin)
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