Mailing List Message #7104
From: Fokko van Duin <>
Subject: Re: Why is SIMS sending a 472 to blacklisted host?
Date: Sun, 12 Nov 2000 14:41:37 +0100
To: SIMS Discussions <>
Date: Sat, 11 Nov 2000 07:01:41 -0700
From: Cerebus D Aardvark <>

On 11/11/00 at 2:39 PM +0100, Fokko van Duin said:

Maybe this have come up before on this list, but I can not figure out
why SIMS 1.8b8 is sending an error 472 to a spammer, while it is
blacklisted? The problem is this spammer keeps coming back now for a
week every 5 minutes!

Looks like is not in your blacklist host list.

Yes, I have in the blacklist. The strange thing is my mail server said:

11:35:35 1 SMTP-070([]) SPAM? Host is blacklisted per RBL with result []

But instead of sending an error 5xx being blacklisted, it goes on with:

11:35:36 4 SMTP-070( Input Line: MAIL From:<>\r
11:36:05 4 SMTP-070( No relay exists for ''
11:36:05 4 SMTP-070( Looking for
11:36:35 3 SMTP-070( Return-Path-A Search Error. Error Code=-3162
11:36:35 4 SMTP-070( Sending 472 <> cannot be verified now\r\n

Is this a bug in SIMS or is there another reason why SIMS does this?

Fokko van Duin
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