> Is there some more documentation on the SQL look ups side of things?
README.lookups, search for "SQL".
The SQL clause is user-configurable, the default
for $sql_clause{sel_policy} is a:
SELECT *,users.id'.
FROM users LEFT JOIN policy ON users.policy_id=policy.id
WHERE users.email IN (%k) ORDER BY users.priority DESC
as stated in amavisd.conf-default, but can be changed to will.
> In particular it would be nice to see a diagram making the relationship
> between tables clear.
'users' and 'policy' tables are usually joined on users.policy_id=policy.id .
'msgs' and 'msgrcpt' are to be joined on both the 'partition_tag'
and 'mail_id' fields.
The 'quarantine' and 'msgs' are to be joined on both the 'partition_tag'
and 'mail_id' fields.
Sender and recipient addresses are stored in table 'maddr',
referred to its 'id' by msgs.sid (sender) and msgrcpt.rid (recipient).
> Also, when an email is quaranteened in sql, are the "to" addresses
> stored in a way that can be easily look up?
The 'To' addresses from a header section are not stored to SQL,
these are irrelevant for message delivery. The envelope recipient
address is stored in msgrcpt.rid / maddr.id.
Mark
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