CentOS - Mar 2009 - Postfix smtp_recipient_restrictions causing mail to fail

Hi All,

I'm currently playing with smtp_recipient restrictions to try and knock 
some of this spam on it's head. On my old debian server, I was using 
this and successfully filtering out at least 90% if not more of all spam 
emails which was great. I didn't even need spamassassin.

However, trying to do the same thing on my new CentOS based server isn't 
working. With the following enabled, nothing comes through from the 
outside world.

Can anybody see where I've gone wrong. I can't fathom why this would 
block all incoming emails from the web.

smtpd_recipient_restrictions      permit_mynetworks,
     permit_sasl_authenticated,
     reject_invalid_hostname,
     reject_non_fqdn_hostname,
     reject_non_fqdn_sender,
     reject_non_fqdn_recipient,
     reject_unknown_sender_domain,
     reject_unknown_recipient_domain,
     reject_rbl_client zen.spamhaus.org,
     permit

Thanks,

Kind regards,
Logan Moore

Logan Moore wrote:
> Hi All,
>
> I'm currently playing with smtp_recipient restrictions to try and knock
> some of this spam on it's head. On my old debian server, I was using 
> this and successfully filtering out at least 90% if not more of all spam 
> emails which was great. I didn't even need spamassassin.
>
> However, trying to do the same thing on my new CentOS based server
isn't
> working. With the following enabled, nothing comes through from the 
> outside world.
>
> Can anybody see where I've gone wrong. I can't fathom why this
would
> block all incoming emails from the web.
>
> smtpd_recipient_restrictions >      permit_mynetworks,
>      permit_sasl_authenticated,
>      reject_invalid_hostname,
>      reject_non_fqdn_hostname,
>      reject_non_fqdn_sender,
>      reject_non_fqdn_recipient,
>      reject_unknown_sender_domain,
>      reject_unknown_recipient_domain,
>      reject_rbl_client zen.spamhaus.org,
>      permit
>
> Thanks,
>
> Kind regards,
> Logan Moore
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos
>   
Weird. If I comment out the smtpd_recipient_restrictions, that lets 
email through, so I tried removing restriction, restarting postfix and 
then sending an email to check if emails start working. Email didn't 
start working until I removed the smtpd_recipient_restrictions all 
together. Even the following would result in all incoming email being 
blocked.

smtpd_recipient_restrictions = permit

This seems more than a tad wrong