It depends what "bad spammer email address" means.  If the part of the
address to the right of the @ sign truly does not exist in DNS (e.g.,
zjeorheorejreohre.net), then it should get thrown away very quickly as
soon as the queue is processed.  However, if the part to the right side
of the @ sign exists, and points to a server that is really up (e.g.,
hotmail.com) but the left side is bogus, then the message will hang
around until it connects up and either gets an error during the SMTP
protocol or is accepted and deleted later.

There is no way for Exchange to know that this NDR is destined to a "bad
spammer email address", while another NDR is destined for your
grandmother who mistyped your email address.

-----Original Message-----
From: Alverson, Thomas M. [mailto:[EMAIL PROTECTED]] 
Sent: Wednesday, January 09, 2002 6:03 PM
To: Exchange Discussions
Subject: RE: IMC originator <>


Is there any way to have exchange 5.5 treat those NDR messages to bad
spammer email addresses differently than real emails?  I delete them
when I see them in the queue, but It would be nice if you could make
exchange give up real easily (quickly) when trying to send an NDR to a
bad address.

Tom

-----Original Message-----
From: Daniel Chenault [mailto:[EMAIL PROTECTED]] 
Sent: Wednesday, January 09, 2002 3:11 PM
To: Exchange Discussions
Subject: Re: IMC originator <>


The RFC isn't real clear on this. We've gone round on this before and it
seems that server can optionally deny the message up-front or accept it
and than NDR it back to the sender. Exchange does the latter.

----- Original Message -----
From: "Siegel, Richard" <[EMAIL PROTECTED]>
To: "Exchange Discussions" <[EMAIL PROTECTED]>
Sent: Wednesday, January 09, 2002 1:55 PM
Subject: RE: IMC originator <>


> Ok, but they should not be sending ndr's in response to notification
> messages is my point. If relaying disabled, messages that are 
> 'spoofed' should not generate an NDR in my opinion. I mean, why should

> it send and fail send and fail to hosts that don't exist just to say, 
> 'invalid host'
or
> relaying prohibited or am I missing something?
>
>
>
> -----Original Message-----
> From: Lefkovics, William [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, January 09, 2002 2:41 PM
> To: Exchange Discussions
> Subject: RE: IMC originator <>
>
>
> They will still appear for standard, valid NDR's as well.
>
> William
>
> -----Original Message-----
> From: Siegel, Richard [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, January 09, 2002 11:42 AM
> To: Exchange Discussions
> Subject: RE: IMC originator <>
>
>
> So I should ignore those if they are not causing any other problem? I
> have followed all the suggested reccomendations regarding relaying.
>
> Rich
>
> -----Original Message-----
> From: Daniel Chenault [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, January 09, 2002 1:41 PM
> To: Exchange Discussions
> Subject: Re: IMC originator <>
>
>
> That is your server NDRing the attempted relays back to the spammers.
Since
> spammers tend to use bogus addresses those messages will likely
> timeout after three days as undeliverable.
>
> ----- Original Message -----
> From: "Siegel, Richard" <[EMAIL PROTECTED]>
> To: "Exchange Discussions" <[EMAIL PROTECTED]>
> Sent: Wednesday, January 09, 2002 12:18 PM
> Subject: IMC originator <>
>
>
> > I believe I have closed my mail server: smtp.actv.com from relaying,
> however
> > whenever I go into the IMS queues, I am still seeing messages with
> > originator <> with destination another host.  What is up with this, 
> > am I missing something?
> >
> > Rich
> >


_________________________________________________________________
List posting FAQ:       http://www.swinc.com/resource/exch_faq.htm
Archives:               http://www.swynk.com/sitesearch/search.asp
To unsubscribe:         mailto:[EMAIL PROTECTED]
Exchange List admin:    [EMAIL PROTECTED]

_________________________________________________________________
List posting FAQ:       http://www.swinc.com/resource/exch_faq.htm
Archives:               http://www.swynk.com/sitesearch/search.asp
To unsubscribe:         mailto:[EMAIL PROTECTED]
Exchange List admin:    [EMAIL PROTECTED]

Reply via email to