Re: [exim] adding a header to a message in an ACL, even when…

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Lähettäjä: Josip Rodin
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Vastaanottaja: exim users
Aihe: Re: [exim] adding a header to a message in an ACL, even when the condition defers
On Tue, Nov 14, 2006 at 04:15:56AM +0800, W B Hacker wrote:
> > 2006-11-13 08:32:13 1GjWIe-0006bK-LW H=unicorn.laczpol.net.pl
> > [193.24.220.34]:2930 I=[192.168.54.235]:25 Warning: ACL "warn" statement
> > skipped: condition test deferred: all attempts to verify a sender in a header
> > line deferred
>
> If it had been truly 'skipped' the logger would not have known anything about it
> though - least of all that it had tried to make a callout and 'all attempts..'
> were deferred. 'condition could not be evaluated in the time permitted' is what
> happened. It DID try.
>
> 'Skipped' would have been 'too tired, ain't trying no more callouts today'
>
> ;-)


Okay. It's still a bit unsettling to see this in the log file. It also
clutters it a little bit.

> 1) insure that *your* server supports a response to the sender verify of
> *others*. That wins YOU credibility and helps traffic flow smoothly.


Granted.

> 2) Rather than penalize on the sometimes unreliable 'fail' of a sender
> verify,


It's not fully reliable, I know, but it's good enough for my purposes.
Elsewhere I just reject unverifiable senders, but on this system I wanted
to be a bit more careful and make it an SA score.

> instead use the result of a sender verify *success* as 'positive' QC
> points.


That sounds like a good idea in theory, but spammers have long been abusing
other people's valid addresses to deliver their crap.

-- 
     2. That which causes joy or happiness.