[Mimedefang] Failed looping spam

[Tom Horan]

Nice idea David, never thought of it like that.

Yes, getting a list of valid smtp address from Exchange onto my sendmail
boxes wouldnt be a problem.

So if spam=true, and user=notexist then drop, else relay.

What does MIMEDefang use for getting list of recipients ? Ie; bcc's, hidden
recipients etc ...



-----Original Message-----
From: David F. Skoll [mailto:dfs at roaringpenguin.com]
Sent: 11 October 2002 14:09
To: 'mimedefang at lists.roaringpenguin.com'
Subject: Re: [Mimedefang] Failed looping spam


On Fri, 11 Oct 2002, Tom Horan wrote:

> Spam comes in to joejoe at mycompany.com, and gets forward on to Exchange,
> exchange says joejoe doesnt exist, so replies to sender to say mailbox
does
> not exist.

Is there any way to query the Exchange box (using LDAP maybe) so you can
reject the message before relaying it?  That's the only safe/sane way to
do it.

A less pretty way would be to automate a dump of your Exchange mailboxes
into some reasonable format and copy the dump to your MIMEDefang box
every so often.  Then have it reject users not in the list.

Regards,

David.

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