7 messages in net.sourceforge.lists.courier-usersRE: [courier-users] How to reject mes...
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Ricardo KleemannDec 1, 2003 10:43 am 
Gordon MessmerDec 1, 2003 11:34 am 
Mitch (WebCob)Dec 1, 2003 11:37 am 
Jon NelsonDec 1, 2003 11:39 am 
Jon NelsonDec 1, 2003 11:55 am 
Ricardo KleemannDec 1, 2003 12:11 pm 
Mitch (WebCob)Dec 1, 2003 12:34 pm 
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Subject:RE: [courier-users] How to reject messages that have a large number of RCPT TOActions...
From:Mitch (WebCob) (mit@webcob.com)
Date:Dec 1, 2003 12:34:42 pm
List:net.sourceforge.lists.courier-users

I think the parameters in bofh override these - but I think these are hard limits for the module - bofh give you the flexibility of having them fail [hard] or try later - I think the theory about having them try later was that a legitimate mail server would do so, but a bogus one wouldn't get around to it.

Going from memory of reading - not experience here though.

m/

-----Original Message----- From: rica@americasnet.com [mailto:rica@americasnet.com] Sent: Monday, December 01, 2003 12:11 PM To: Courier Users; Mitch (WebCob) Subject: RE: [courier-users] How to reject messages that have a large number of RCPT TO

Thanks Mitch.

What's confusing to me is that queue.html description notes:

"If necessary, courierd will create multiple delivery attempts for the same driver and host." I thought that meant that, regardless of the MAXRCPT setting, courier will still accept larger numbers, by creating multiple delivery attempts.

Did I not understand that correctly?

If I set it to 15 or 20, will courier outright reject any delivery attempt to more than that number?

Ricardo

----- Original Message Follows -----

Look in your /usr/local/courier/etc/module.esmtp

NAME=esmtp PRIORITY=50 PROG=./courieresmtp MAXDELS=40 MAXHOST=4 MAXRCPT=100 LIBRARY=librewrite.la

I think the problem you will find, is that 10 is not a very high number depending on who your users are... and 100 is high enough that the Spammers get good use of you.

HTH

m/

-----Original Message----- From: cour@lists.sourceforge.net [mailto:cour@lists.sourceforge.net]On Behalf Of Ricardo Kleemann Sent: Monday, December 01, 2003 10:43 AM To: Courier Users Subject: [courier-users] How to reject messages that have a large number of RCPT TO

Hi,

One of the troubles I see is that there are a large number of messages by spammers who try to deliver messages to a large number of local recipients. So in mailq I'll see messages that have 10 or more recipients for the message, and almost always it's running down some alphabetical list of usernames.

Is there a way to configure esmtpd so it will reject messages being delivered to a large number of local recipients?

Thanks Ricardo

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