On 27/5/2011 10:42 πμ, Thomas Berger wrote:
Hi Kurniawan,this is the default. Please have a look at the great docs: http://www.postfix.org/SMTPD_ACCESS_README.html
In two words: Do not open access to external IP addresses (except perhaps particular trusted ones!) unless you restrict access with required authentication and (preferably) TLS. Otherwise you'll become an open relay and in no time a spam bot (typical story).
Good luck, Nick
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