Re: [exim] Router weirdness

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Συντάκτης: Martijn Grendelman
Ημερομηνία:  
Προς: exim-users
Υ/ο: Martijn Grendelman
Αντικείμενο: Re: [exim] Router weirdness
Hi,

Sorry to follow up on my own mail, but I suspect you must be as confused
by my post as I was before I wrote it ;-)

> I am running into something I don't understand, so I come here for

help :-)
>
> I am trying to bounce certain mail (identified spam) from a router.

In this particular case, I can't reject the mail during
> SMTP, because one of my users doesn't want this kind of mail

rejected, while others do.
>
> So, in this case, the mail is scanned, but never rejected. I have a

file that contains all the domains that want to keep
> their spam:
>
> domainlist spam_domains = CONFDIR/spam_domains
>
> My first router looks like this:
>
 > bounce_spam:
 >         driver                  = redirect
 >         domains                 = !+spam_domains
 >         allow_fail
 >         condition               = ${if >{$spam_score_int}{65}{1}{0}}
 >         data                    = :fail: This message was classified 

as SPAM
>
> Now, while testing this setup, I see something I don't get. The

spam_domains file contains on this single line:
>
> tinuzz.com
>
> Now, I expect mail that is addressed to anyone@??? to never be

bounced by this router. However, it is:
>
> 2006-03-03 12:07:12 1FF87Z-0007sS-5z ** martijn@???

<martijn@???> R=bounce_spam: This message
> was classified as SPAM
>
> In a later router, martijn@??? is redirected to

martijn@???, and sipo.nl is not in +spam_domains, so that part
> I do understand. Even so, if I put sipo.nl in spam_domains, the mail

is passed, as expected.
>
> What I _don't_ understand is, how the message even gets to that

second router. It should just be failed by the router
> above en the redirection to martijn@??? should never take place.

What am I missing here?

Alright, that didn't make sense. I wasn't thinking straight.

The mail should *not* be failed by this router, and in fact it isn't.
Instead, routing is passed on, and in a later router the mail is
redirected to martijn@???, which is then routed from the start. This
domain is not in +spam_domains, so the bounce_spam router handles the
message and bounces it.

I see that now :-)

So, what I actually want, is that the "bounce_spam" router only acts on
addresses that are not the result of another redirect router. Is there a
way of saying that? I haven't looked for it in the docs. Will do that
now, but hints are welcome, of course.

Thanks,
Martijn.