553 errors

[Angus Robinson]

On 10/20/2016 01:17, Doug Hardie wrote:
> Check your maillog file in /var/log for error messages for that email.  There should be something helpful there.
>
>
>> On 19 October 2016, at 12:42, Shannon @ shaw <MCEStaff at shaw.ca> wrote:
>>
>> I have several people that tell me they can't send mail to me (in this example case, my-user at my-xyz.com)
>> Usually I have a hard time getting them to forward me the errors or maybe I don't even hear about it because I just didn't know anyone was e-mailing me.
>> This one lady (her-user at her-xyz.com) however was able to forward me the error message.
>> It looks like her company uses google to forward mail and my server is rejecting it.
>> Do I have something mis-configured here? Do I have to make an exception to allow google as a relay?
>>
>> I've changed the sender and recipient addresses but it basically looks like this:
>>
>>
>> Delivery to the following recipient failed permanently:
>>
>>     my-user at my-xyz.com
>>
>> Technical details of permanent failure:
>> Google tried to deliver your message, but it was rejected by the server for
>> the recipient domain my-xyz.com by mail.my-xyz.com.
>> [111.111.111.163].
>>
>> The error that the other server returned was:
>> 553 5.3.0
>>
>>
>> ----- Original message -----
>>
>> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
>>        d=her-xyz.com; s=google;
>>        h=from:references:in-reply-to:mime-version:thread-index:date
>>         :message-id:subject:to;
>>        <encrypted nonsense>
>> X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
>>        d=1e100.net; s=20130820;
>>        h=x-gm-message-state:from:references:in-reply-to:mime-version
>>         :thread-index:date:message-id:subject:to;
>>        <encrypted nonsense>
>>
>> X-Gm-Message-State:
>> AA6/9RkHXkTbYI6xmMt6xu2tQHQz3YeuuvipfbFY/monaFJUKJtQA7PKgREYvFNyCEJ4ot9hr0HGz+EtgeRMvSwF
>> X-Received: by 10.107.34.144 with SMTP id
>> i138mr6826088ioi.197.1476889626314;
>> Wed, 19 Oct 2016 08:07:06 -0700 (PDT)
>> From: Her User <her-user at her-xyz.com>
>> References: <935487A50EDE4DCB860487590C80C169 at VCMCE110228>
>> In-Reply-To: <935487A50EDE4DCB860487590C80C169 at VCMCE110228>
>> MIME-Version: 1.0
>> X-Mailer: Microsoft Outlook 16.0
>> Thread-Index: AQKYoSoKkLEFwHXxnMVCPGibF3LCz58i8nWw
>> Date: Wed, 19 Oct 2016 10:06:46 -0500
>> Message-ID: <559fbc8415e1e417c7d7ff2ae1880485 at mail.gmail.com>
>> Subject: RE: a few more
>> To: My User <my-user at my-xyz.com>
>> Content-Type: multipart/alternative; boundary=001a1140a10c8cc6d2053f392931
>>
>> Thank you Mr. User!
>>
>>
>>
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Hi Shannon

According to google the 553. 5.3.0 is the below.  The usual, are they 
spelling your username correctly ? is your server able to lookup your 
username (if your using mysql) ? what happens if you create a google 
account and send an email from there, same symptoms ?

553 5.3.0 ... Address does not exist
553 5.3.0 ... No such user
553 5.3.0 ... No such user here
553 5.3.0 ... User unknown, not local address