Ok,  thanks!!


On 2015-10-11 15:36, Sesso wrote:
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 <[email protected]> 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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