MailScanner SMTP question

Kevin Miller Kevin_Miller at
Wed Mar 8 19:44:28 GMT 2006

I think it's 99 quid - still a bargain in the grand scheme of things... 

Kevin Miller                Registered Linux User No: 307357
CBJ MIS Dept.               Network Systems Admin., Mail Admin.
155 South Seward Street     ph: (907) 586-0242
Juneau, Alaska 99801        fax: (907 586-4500
-----Original Message-----
From: mailscanner-bounces at
[mailto:mailscanner-bounces at] On Behalf Of Julian
Sent: Wednesday, March 08, 2006 10:15 AM
To: MailScanner discussion
Subject: Re: MailScanner SMTP question

Hash: SHA1

Scott Silva wrote:
> Julian Field spake the following on 3/6/2006 3:00 AM:
>> The one thing you can do to alleviate this with MailScanner is to use

>> the "IPBlock" code within It only works with  
>> sendmail, if I remember correctly. You can put the maximum limit of  
>> email messages per hour that you accept from a domain or a block of  
>> IP addresses. Once it gets more messages that that from an address  
>> (or IP) it starts telling sendmail to block mail from that address.  
>> Once an hour the counters are reset.
>> Not many people use this, which is why it isn't a core feature, but  
>> the person who asked me to write it makes great use of it.
>> Fundamentally, this is really a job for you MTA, and not MailScanner

>> at all. If you are using sendmail, then there are milters such as  
>> milter-ahead which will check the addresses it receives are real on  
>> your system, and rejects all messages that are being delivered to
>> existent addresses. It is a lot faster than you might think it would

>> be, as it does lots of caching, and it will reject a message long  
>> before the content of the message is transmitted. Thoroughly  
>> recommended. There are mailing list postings and Wiki pages that will

>> tell you how to do something similar on other MTAs.
>> On 6 Mar 2006, at 03:19, Laurent Dinclaux wrote:
> Is there a free equivalent to Milter-ahead? Or does my copy I got
"before" it
> wasn't free still work?
He doesn't charge much, does he? I thought it was something like a 
nominal $99? How much is your time worth implementing something else?

- -- 
Julian Field
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