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Wed, 1 Nov 2006 14:13:15 -0500 |
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It doesn't return the mail, just a brief bounce message, and that can
be turned off.
As I mentioned, it can be good to let legitimate people know their
email didn't go through,
but it's up to the admin to determine which way they want it.
John
At 02:07 PM 11/1/2006, you wrote:
>"LISTSERV site administrators' forum" <[log in to unmask]>
>wrote on 11/01/2006 01:03:09 PM:
>
> > It can be configured not to return bounces. For non-listserv
> > installations, returning bounces does perform the useful task of
> > informing legitimate people that their email did not get through and
> > they can then take appropriate action. It's possible to mount a
> > reverse attack, i.e. have some poor unsuspecting individual get
> > thousands of real bounces because their email address was used in one
> > or more large spam mailings.
>
>Returning bogus mail is just plain wrong. The trick is to *NOT* accept
>it. This requires evaluating messages DURING the connection, before
>returning "250 message accepted". Any of the spam filters based on
>sendmail's milter interface can do this. Other MTAs may be able to do
>this as well. Closing the connection and then evaluation is going to
>guarantee either lost mail or backscatter spam.
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