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Re: recipient address verification
From: Wietse Venema (wietse
porcupine.org)
Date: Thu Oct 02 2003 - 07:10:51 CDT
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Sascha Lucas:
> Wietse Venema schrieb:
> >
> > Sascha Lucas:
> > > Hi list, Hi Wietse,
> > >
> Hi list, Hi Wietse,
>
> Wietse Venema wrote:
> > This happens ONLY if the MTA is down BEFORE Postfix has had a chance
> > to find out if the recipient exists. Postfix maintains a cache of
> > valid recipients, which eliminates this problem.
>
> Ok I see, the cache will give a kind of safety. I desided to store the
> address_verify_map. For testing now I think this will be ok. In the
> README there is a warning about the filesize of the btree. How big will
> this grow (in theorie) with approx. 50000 different mail-addresse?
That depends on too many things. If you are concerned about size,
then do not enable caching of negative address verification results,
because that causes all kinds of garbage to enter the database.
Wietse
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