On Tue, 10 Mar 2009, Farzad FARID wrote:
Le 10.03.2009 09:59, Stefan Schmidt a écrit :
Nice thing, but just out of curiosity, why don't you use postfix'
recipient verification mechanism?
In smtp_recipient_restrictions add reject_unverified_recipient at a
reasonable position in these restrictions. Everything else
automagically happens.
Thanks for asking. In the "Postfix Address Verification Howto"
(http://www.postfix.org/ADDRESS_VERIFICATION_README.html) it says that:
"/A Postfix MTA verifies a sender or recipient address by probing the
nearest MTA for that address, without actually delivering mail. The nearest
MTA could be the Postfix MTA itself, or it could be a remote MTA (SMTP
interruptus). Probe messages are like normal mail, except that they are never
delivered, deferred or bounced; probe messages are always discarded./"
This is a very heavyweight process, especially if we have the Cyrus database
at hand :) So I think that looking up an entry in a hash map is much faster
and doesn't involve any SMTP/LMTP connection.
And if the Postfix relay and the Cyrus database are not on the same physical
computer, and someone's interested, I can extend my little tool to use a
network connection to fetch the user database.
Best regards
what about something like "Postfix version of smmapd" :
http://www.mail-archive.com/info-cyrus@xxxxxxxxxxxxxxxxxxxx/msg31479.html
...
it is good solution, it has test for existention of mailbox and overquota
..
i have fidled with it, but have not working solution, because there is
some problem with unixhierarchysep and altnamespace , i think ... :-((
its about 1.5 years ago as tryed it ...
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