From: - Kone Bakenon - (koneuniv-ouaga.bf)
Date: Wed Aug 09 2006 - 11:39:58 CDT

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> - Kone Bakenon - wrote:
>> Hello all,
>> Since day before yesterday, i have a lots of of message like that in my
>> log :
>>
>> Aug 9 10:03:12 mail postfix/smtpd[11364]: connect from
>> mail.magicjent.com[63.207.43.210]
>> Aug 9 10:03:12 mail postfix/smtpd[11373]: NOQUEUE: reject: RCPT from
>> mx1.iml.com[204.92.14.10]: 450 <LarryzYxGreenmydomain.com>: Recipient
>> address rejected: User unknown in local recipient table; from=<>
>> to=<LarryzYxGreenmydomain.com> proto=ESMTP helo=<mx1.iml.com>
>> Aug 9 10:03:12 mail postfix/smtpd[11289]: disconnect from
>> unknown[206.159.183.93]
>> Aug 9 10:03:13 mail postfix/smtpd[11341]: connect from
>> defout.telus.net[199.185.220.240]
>>
>
> As others already said, this looks like backscatter mails from badly
> configured servers. If your recipient validation is working correctly you
> might want to change the 450 tempfail of unknown recipient to 550
> permanent rejection:
>
> unknown_local_recipient_reject_code = 550

I add the previous line and restart postfix but i still have the same log.
---------
Kone

>
> That way the backscatter server will not hammer your server repeatedly
> with undeliverable mail.
>
> Sandy
>

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