On 02/02/2011 06:17 PM, Victor Duchovni wrote:
> On Wed, Feb 02, 2011 at 05:30:52PM +0100, J4K wrote:
>
>> The smtpd has a 'sleep 3' at the start of it. Might this have been the
>> cause? If so, then it served the purpose.
>>
>> smtpd_recipient_restrictions = sleep 3,
>> permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination,
>> reject_non_fqdn_sender, reject_rbl_client
>> hostkarma.junkemailfilter.com=127.0.0.2, reject_rbl_client zen.spamhaus.org
> Unconditional "sleep <n>" applied even to servers that repeatedly pass
> the test damages email infrastructure (by forcing legitimate servers
> to expand substantially more resources, and delaying their email to
> other destinations). Please don't do this. Consider upgrading to Postfix
> 2.8 and deploying postscreen(8) which remembers which servers pass the
> test.
>
Valid point. I have removed the sleep condition and shall see how much
extra spam is received. I shall upgrade to 2.8 and postscreen when its
available as a Debian package.
