Hello,
Odhiambo G. Washington <wash@???> (Di 01 Aug 2006 21:40:27 CEST):
>
> 1. What is the dandiest way to do this? After all dnsbl, I want to
> accomplish all the checks at acl_smtp_rcpt and reject any unknown
> recipients. Are there are pitfalls I should watch for?
You could use callout on your MX to verify the recipient at the box where you sit.
We do sort of this on our secondary MX. With a reasonable cache time it
shouldn't call too often for already known names.
Or - if your users/domains are already in LDAP - you can use LDAP
replication mechanisms for synchronising your recipient list with the
list outside.
(About the same holds for MySQL or other data bases having some
master/slave conept. -- even DNS you could rape.)
Or any other self brewed synchronzing mechanism. (Flat uncompressed(!) file
(or probably even some DB format) synchronized via rsync.)
Best regards from Dresden
Viele Grüße aus Dresden
Heiko Schlittermann
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