bypass amavisd after OK from policy daemon?
Patrick Ben Koetter
p at sys4.de
Tue Aug 6 08:37:09 CEST 2013
* Franz Schwartau <franz at electromail.org>:
> Hi Noel,
> thanks for your answer.
> On 05.08.2013 18:31, Noel Jones wrote:
> > On 8/5/2013 10:42 AM, Franz Schwartau wrote:
> >> Dear list,
> >> I configured postfix to use amavisd as a SMTP proxy (smtpd_proxy_filter). Now I'd like to skip amavisd if a policy daemon called in smtpd_recipient_restrictions returns OK.
> >> Has anyone any idea how to accomplish this?
> >> As far as I unterstood postfix' restrictions there is no "final" OK skipping any further checks.
> > The insurmountable problem is that amavisd is called before the
> > policy server is ever run.
> > Any bypass will need to be in amavisd itself.
> > The built-in bypass mechanisms in amavisd-new are the various
> > bypass* and *lovers parameters. If they can't do what you want,
> > custom code will be needed.
> I'm aware of the fact that amavisd is run before the policy daemon if
> configured as a smtpd_proxy_filter. This is why I asked "Is there any
> way to flag anything so amavisd skips it's checks?"
> The only way I found so far is to set an extra header in postfix via
> PREPEND. This extra header can be evaluted by spamassassin setting a
> very low score. Unfortunatly this doesn't cover virus or bad header checks.
> amavisd's bypass and lovers maps are for recipients, only.
> Any idea how amavisd can be configured to skip checks if an extra header
> is set?
Not unless you add (read: program) a custom class.
What problem do you need to solve? Maybe we can use a different approach.
p at rick
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