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.
--
Viktor.
