No one should be able to get a message in your queue to a non-existent
user unless they're using an account that they've hacked.
Someone correct me if I'm wrong.

On 10/8/2015 12:37 PM, Eric Broch wrote:
> Has someone hacked a password?
>
> On 10/8/2015 11:59 AM, Rajesh M wrote:
>> spammer is emailing a non existent user on my server.
>>
>> qmailtoaster is accepting the email and then trying to respond back 
>>
>> my queue is flooding because ot this
>>
>> should'nt chkuser be directly bouncing the email during smtp transaction 
>> time when email id is not present on the server ?
>>
>> pl see below the message trapped in my queue. kindly let me know how i could 
>> prevent these
>>
>> thanks for your help
>>
>> rajesh
>>
>> log files
>>
>> @400000005616a19e352eb154 info msg 1840641: bytes 60095 from 
>> <[email protected]> qp 40028 uid 89
>> @400000005616a19e36a305bc starting delivery 1066: msg 1840641 to local 
>> [email protected]
>> @400000005616a19e36a328e4 status: local 1/200 remote 60/60
>> @400000005616a19e374ed234 delivery 1066: failure: 
>> Sorry,_no_mailbox_here_by_that_name._(#5.1.1)/
>>
>>
>> sample bounce message
>>
>> Received: (qmail 5240 invoked for bounce); 8 Oct 2015 17:23:48 -0000
>> Date: 8 Oct 2015 17:23:48 -0000
>> From: [email protected]
>> To: [email protected]
>> Subject: failure notice
>>
>> Hi. This is the qmail-send program at ns1.bizmailserver.net.
>> I'm afraid I wasn't able to deliver your message to the following addresses.
>> This is a permanent error; I've given up. Sorry it didn't work out.
>>
>> <[email protected]>:
>> Sorry, no mailbox here by that name. (#5.1.1)
>>
>> --- Below this line is a copy of the message.
>>
>> Return-Path: <[email protected]>
>> Received: (qmail 3803 invoked by uid 89); 8 Oct 2015 17:19:29 -0000
>> Received: by simscan 1.4.0 ppid: 3636, pid: 3743, t: 2.9901s
>>          scanners: attach: 1.4.0 clamav: 0.98.6/m: spam: 3.3.2
>> X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on
>>         ns1.bizmailserver.net
>> X-Spam-Level:
>> X-Spam-Status: No, score=0.0 required=5.0 tests=T_FROM_12LTRDOM
>>         autolearn=disabled version=3.3.2
>> Received: from unknown (HELO redbrokerage.com.inbound10.mxlogicmx.net) 
>> (187.234.134.4)
>>   by ns1.bizmailserver.net with SMTP; 8 Oct 2015 17:19:26 -0000
>> Received-SPF: unknown (ns1.bizmailserver.net: domain at listrak does not 
>> designate permitted sender hosts)
>> Received: from redbrokerage.com.inbound10.mxlogicmx.net 
>> (redbrokerage.com.inbound10.mxlogicmx.net [208.65.144.3])
>>         by redbrokerage.com (Outbound Mail Relay) with ESMTP id 
>> yZSt49AdKNeARht0
>>         for <[email protected]>; Thu, 08 Oct 2015 13:19:29 -0400 
>> (EDT)
>> MIME-Version: 1.0
>> Message-ID: <[email protected]>
>> Date: Thu, 08 Oct 2015 13:15:29 -0400
>> From: "Noemie Considine" <[email protected]>
>> To: [email protected]
>> Subject: contract
>> Content-Type: multipart/mixed;
>>  boundary="------------070709070301020805080405"
>> --------------070709070301020805080405
>> Content-Type: text/plain; charset=utf-8; format=flowed
>> Content-Transfer-Encoding: 7bit
>>
>> Dear customer,
>>
>> I'm sending you a new contract of the project (Private collateral statement 
>> of account)
>>
>> --------------070709070301020805080405
>> Content-Type: application/zip; name="Private collateral statement of 
>> account.zip"
>> Content-Description: "Private collateral statement of account.doc"
>> Content-Disposition: attachment; filename="Private collateral statement of 
>> account.zip"; size=43024;
>>         creation-date="Thu, 08 Oct 2015 13:16:29 -0400";
>>         modification-date="Thu, 08 Oct 2015 13:17:29 -0400"
>> Content-Transfer-Encoding: base64
>>
>>
>>
>>
>>
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