Re: NDRs to Spammer

From: AdminKen (kspam_at_microsoft.com)
Date: 07/07/04


Date: Wed, 7 Jul 2004 00:29:27 -0700

Mike,

Yes, there IS away to disable NDR with Exchange 5.5.

Look up Microsoft KB 837794.
http://support.microsoft.com/default.aspx?scid=kb;en-us;837794

The hotfix requires Microsoft Exchange Server 5.5 Service Pack 4 (SP4). You
will have to contact Microsoft to get the hotfix. It is free though.

Admin Ken

"Michael D. McGill" <mcgillmd@hotmail.com> wrote in message
news:uC7QeD4XEHA.3112@tk2msftngp13.phx.gbl...
> Am running Exchange 5.5 SP2. When I look at the Outbound Messages queue in
> Internet Mail services it shows a bunch of messages from originator "<>".
> My assumption is that these are NDRs being sent by Exchange to spammers
that
> have sent spam to an invalid address w/in my domain.
>
> My question: Is there a way to configure Exchange to not send these NDRs
or
> should i even be concerned about it. I can see where to configure NDRs for
> my internal users but not to the internet.
>
> Thanks in Advance,
> Mike
>
>



Relevant Pages

  • Re: Exchange Server 2000 relay problem.
    ... These may be NDRs from spam. ... Block Open SMTP Relaying and Clean Up Exchange Server SMTP ...
    (microsoft.public.exchange.connectivity)
  • Re: IMF behind smarthost
    ... Note that there are different types of NDRs. ... When Exchange blocks an email through this filter, ... the smarthost for internet originating emails? ... I enable recipient filtering. ...
    (microsoft.public.exchange.admin)
  • Re: MS Exchange 5.5 NDRs (from MyDoom)
    ... Microsoft Exchange 5.5 sending so many NDRs that it is causing network ... Microsoft Exchange Server 5.5. ... Enabling 550 response to unknown users might enable an SMTP AUTH relay ...
    (NT-Bugtraq)
  • Re: IMF behind smarthost
    ... Note that there are different types of NDRs. ... When Exchange blocks an email through this filter, ... In your case emails are being sent to Exchange by the smarthost. ... I enable recipient filtering. ...
    (microsoft.public.exchange.admin)
  • Re: Mails with no sender in the SMTP qeue
    ... You could turn of NDRs but that would prevent originators that uninentially ... Otherwise you need to purchase a third party tool for Exchange 2000 such as ... >> Exchange Server accepts aliases to valid domains at your exchange server. ... Due to the fact that many of the originating addresses of the ...
    (microsoft.public.exchange2000.admin)