Question: in a router, when a foo: header was added in an ACL, is the ordering of $h_foo: specified with respect to foo: headers present in the SMTP data?
I'm using these for passing data from ACLs to routers, and worrying about external attack. If I add my own with :at_start: will they always precede any attackers' ones in the expansion?
Is there some better way to do this? I'd really like some $acl_rN
variables, per-recipient rather than per-message or -connection.
Possibly I should be building a string tagged by recipient in a
$acl_mN and ${extract-ing in the routers. Headers have a slight
advantage in that I can choose to not strip them at transport time,
and maintain the communication from one exim cycle to another
where needed.
I want this communication in order to cut down on duplicated database
accesses.Thanks, Jeremy
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