Well it look like I had to disable the recipiant filtering because as I look at the spam filter we have, I see someone trying to spoof one of the e-mails, but the dns blacklist is catching it. Shouldn't the spam filter we have be blocking the NDR attack? Could it be that somthing got inside out...
There where no messages in the bad mail folder, But I did what MRoberto recomended, thanks. I'm alittle unclear on the Tarpitting thing, but the rest made sence.
I'm running Exch. 2003. and over the past 2 month, the queue folder size and in min. is up to 1432. There are alot of emails that when opened mostly say "undeliverable". Some I can delete if there there for days, but a bunch of them I can't delte. It give me the old "file is in use" message.
I'm...
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