Open Relay question

[Sesso]

Configure an email address that is not on your server to go through your server and see if its rejected. 


jason


> On Oct 11, 2015, at 3:34 PM, Keith Smith <techlists at phpcoderusa.com> wrote:
> 
> 
> 
> 
> Hi,
> 
> How can I verify my server is not an open relay which will allow others to send spam through my box?
> 
> Ubuntu 14.04LTS
> Postfix+Dovecot
> 
> Thanks in advance
> 
> Keith
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