How do I bounce back all mails over 50 recipients

[Peter Farrow]

On 11/03/2010 13:24, Alex Neuman van der Hans wrote:
> So all a spammer would have to do is send his/her spam to 50 people on your server and spoof the "from" address... Your server would receive it, refuse to deliver it and bounce it to the spoofed address, thus enabling the spammer to send email through your server.
>
> I don't think that's what you want.
> --
>
> Alex Neuman van der Hans
> Reliant Technologies
>
> +507 6781-9505
> +507 832-6725
> BB PIN: 20EA17C5
>
>
> -----Original Message-----
> From: ram<ram at netcore.co.in>
> Date: Thu, 11 Mar 2010 18:43:27
> To: MailScanner discussion<mailscanner at lists.mailscanner.info>
> Subject: Re: How do I bounce back  all mails over 50 recipients
>
>
> On Thu, 2010-03-11 at 10:55 +0000, Alex Neuman van der Hans wrote:
>    
>> That works for 80 local users in one transaction. It will deal with local users sending out to more than 80 people, but not foreign users sending to more than 80 total but less than 80 on his server, or foreign users who sent to his server using bcc to less than 50 people. If the sender splits recipients it will not trigger either.
>> --
>>      
> If the sender is going to split it . then forget thats ok.
> I think it should be trivial to bounce back from inside Mailscanner on
> rcpt count. Just that how do I generate an NDR  and send the mail back
>
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>    
>> Alex Neuman van der Hans
>> Reliant Technologies
>>
>> +507 6781-9505
>> +507 832-6725
>> BB PIN: 20EA17C5
>>
>>
>> -----Original Message-----
>> From: Michael Mansour<micoots at yahoo.com>
>> Date: Wed, 10 Mar 2010 23:02:19
>> To: MailScanner discussion<mailscanner at lists.mailscanner.info>
>> Subject: Re: How do I bounce back  all mails over 50 recipients
>>
>> Hi,
>>
>> --- On Thu, 11/3/10, ram<ram at netcore.co.in>  wrote:
>>
>>      
>>> From: ram<ram at netcore.co.in>
>>> Subject: How do I bounce back  all mails over 50 recipients
>>> To: "MailScanner discussion"<mailscanner at lists.mailscanner.info>
>>> Received: Thursday, 11 March, 2010, 4:39 PM
>>> I have a requirement that mails
>>> with  over 50 recipients should be
>>> outright rejected or bounced back
>>> I assumed this would have been pretty simple to configure
>>> in MailScanner
>>> or my MTA ( postfix)
>>>        
>> My guess is this is a postfix setting.
>>
>> I know with Sendmail it's in the sendmail.mc as:
>>
>> define(`confMAX_RCPTS_PER_MESSAGE', `80')dnl
>>
>> which limits to 80.
>>
>> Regards,
>>
>> Michael.
>>
>>      
>>> I do not want the mails to reach even the first 49
>>> recipients if mail is
>>> marked to 50
>>>
>>>
>>>
>>> Thanks
>>> Ram
>>>
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>>
>>
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>>      
>    

The safest thing to do is simply to bin it in this instance, sending 
NDRs just generates back scatter as Alex pointed out...

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