How do I bounce back all mails over 50 recipients

Peter Farrow peter at
Thu Mar 11 10:34:06 GMT 2010

On 11/03/2010 08:37, Lyndon Labuschagne wrote:
> On 11 Mar 2010, at 9:50 AM, ram wrote:
>> On Thu, 2010-03-11 at 09:14 +0200, Lyndon Labuschagne wrote:
>> This works , but the first 50 recipients get the message , the rest 
>> get rejected
>> Can I reject all message for all recipients
> I hope I am wrong but i dont think  you can by default, you may be 
> able to use some sort of header_check rule to REJECT but I have no 
> idea how one would do that
yes you can, its done at the MTA level, if you are using sendmail you 
can add this to your file:

eg: for 50 recipients:



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