[wellylug] Server acting as a mail relay

Hong Chyr hongchyr at yahoo.co.uk
Tue Oct 13 21:52:39 NZDT 2009


Good idea. I'll get on with that.

Mark Foster wrote:
> Get a copy of an example offending message's headers and find the 
> corresponding date/time in your logs, to start with?
>
> On Mon, 12 Oct 2009, Hong Chyr wrote:
>
>   
>> Hi all
>>
>> I am experiencing a strange issue with a co-lo mail server. We are
>> running Postfix on the server, and we have restricted the trusted domain
>> to localhost.
>>
>> mynetworks=127.0.0.1/8
>>
>> We have also tested the server using open relay test sites such as
>> http://www.abuse.net/relay.html. The result reported the server as not
>> being an open relay.
>>
>> However, we received some complains from our co-lo provider that some
>> spam emails have been relayed from our server. How can I troubleshoot
>> this problem?
>>
>> Many thanks for your input.
>>
>> Regards
>>
>> Hong
>>
>>
>> -- 
>> Wellington Linux Users Group Mailing List: wellylug at lists.wellylug.org.nz
>> To Leave:  http://lists.wellylug.org.nz/mailman/listinfo/wellylug
>>
>>     
>
>
>   

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