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Re: Can I improve the efficiency of my dnsbl reject configuration?
From: Dennis Guhl <lists_at_nospam>Date: Fri Apr 27 2012 - 18:30:49 GMT
To: postfix-users@postfix.org
On Fri, Apr 27, 2012 at 08:16:47PM +0200, Ansgar Wiechers wrote:
> On 2012-04-27 karf96@mailcan.com wrote:
> > On Fri, Apr 27, 2012, at 06:43 PM, Bastian Blank wrote:
> >> On Fri, Apr 27, 2012 at 08:55:15AM -0700, karf96@mailcan.com wrote:
> >>> reject_non_fqdn_recipient
> >>
> >> Why?
> >
> > Because countless documentation examples suggest it, including in "The
> > Postfix Book".
>
> For my personal mail server I use this rule, too. However, you need to
> be aware that it might reject some legit mail (e.g. from mail servers
> configured by stupid, but valid, customers), hence the rule may be
> inappropriate in situations where you handle business mail or mail for
> third parties.
No really, I believe you have something else in mind.
>From http://www.postfix.org/postconf.5.html#reject_non_fqdn_recipient:
reject_non_fqdn_recipient
Reject the request when the RCPT TO address is not in
fully-qualified domain form, as required by the RFC.
Dennis