On Thu, Mar 25, 2010 at 03:40:55PM +0000, Jamie Griffin wrote:
> 
> Hello
> 
> My isp has sent a message that my postfix is rejecting. I have spent the 
> morning reading through what i think are the relevent parts of the 
> documentation and through the archives but the changes i've made to my 
> configuration are not working and I don't understand what i've done wrong. 
>
> The logfile has the following entry:
> 
> Mar 25 15:04:45 fix postfix/smtpd[11095]: NOQUEUE: reject: RCPT from
> pih-inmx03.plus.net[212.159.10.4]: 450 4.1.8
> <www-d...@fhw-workplace02.servers.plus.net>: Sender address
> rejected: Domain not found;
> from=<www-d...@fhw-workplace02.servers.plus.net>
> to=<grif...@fantomatic.co.uk> proto=ESMTP helo=<pih-inmx03.plus.net
>
The reject should be expected since fhw-workplace02.servers.plus.net
neither owns an A nor an MX-RR.

> Mar 25 15:04:45 fix postfix/smtpd[11095]: disconnect from 
> pih-inmx03.plus.net[212.159.10.4]
> 
> So i tried letting this domain through by putting .plus.net into a file: 
> 
>     hash:/usr/pkg/etc/postfix/whitelist_sender 
> 
>   like so: 
>        /usr/pkg/etc/postfix/main.cf :
>        smtpd_sender_restrictions = 
>         check_sender_access hash:/usr/pkg/etc/postfix/whitelist_sender,
>         [ ... ]
> 
>        /usr/pkg/etc/postfix/whitelist_sender:
>        .plus.net        OK

I think -- whilst I'm not entirely sure -- you should whitelist
@fhw-workplace02.servers.plus.net and not only .plus.net. Oh, and
don't forget to invoke postmap to create
/usr/pkg/etc/postfix/whitelist_sender.db

> Before this, I thought the problem might with configuration i've used in 
> $smtpd_recipient_restrictions but I tried a similar approach as above but 
> that didn't work either.
> 
> I know I've made a mistake but i can't see what it is, i'm stuck. I'm 
> wondering if someone on list could give some guidance. My postconf -n is 
> below, thank you.

IHMO you did no mistake, all postfix installations I know use
reject_unknown_sender_domain to prevent SPAM. And no one should send
emails with no valid A and MX-RR.
 
>     Jamie.

Dennis

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