Re: What Is Best Way To Handle NDRs?

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On Fri, 14 Oct 2005 15:53:52 -0500, "Ed Usher" <edu@xxxxxxx> wrote:

>Right now I am suppressing NDRs entirely. (We once got hammered by some
>sort of spam bot that sent thousands of bogus messages to our domain -- it
>slowed our old Exch 5.5 server to a crawl for a while.)
>
>However, it seems I have read that some ISPs require you to respond with
>NDRs a certain percentage of the time.
>
>Anyway, is it better to suppress NDRs entirely, or to do something with
>them? For instance, can you forward them to a postmaster mailbox or
>something like that on your own domain?
>
>Thanks
>

My recommendation is complete supression for no other reason than the
spam issue.
However, if you create another entry in Internet Message Formats in
ESM you can add domains (for partner or trusted companies/domains
etc.) and change the behaviour such as to allow NDR,s, OOF's etc. etc.
.