[exim] Where insert whitelists?

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Autor: Marco Gaiarin
Data:  
Dla: exim-users
Temat: [exim] Where insert whitelists?

I'm giving a try to the newer whitelists DNS lists, like SWL/DNSWL.

But i'm a little in doubt on where better inseert the check. In my
setup, on the acl_check_rcpt ACL, i've some whitelist (authenticated
users, postmaster whitelist), then a plethora of black checks (headers,
RBL, SPF, ...) and then the final check that use callout to internal
server:

  accept
    domains = +local_domains : +relay_to_domains
    endpass
    .ifdef CHECK_RCPT_GIVE_UNKNOWN_USER
    message = ${if eq{$acl_verify_message}{Unrouteable address}{unknown user}{$acl_verify_message}}
    .else
    message = unrouteable address
    .endif
    verify = recipient/callout=defer_ok


Ok, i can add as the last white checks just before the black checks, a
rule like:

  .ifdef CHECK_RCPT_IP_DNSWLS
  accept
    hosts = !+relay_from_hosts
    dnslists = CHECK_RCPT_IP_DNSWLS
    log_message = $sender_host_address is whitelisted at $dnslist_domain ($dnslist_value: $dnslist_text)
  .endif


but this rule clearly does not perform callouts, so i will generate
bounces with the internal server and not rejections of recipients.


What is better to do? dupe the callout check (that are cached), define
a sub-acl to use as override for the black checks (as for debian
acl_local_deny_exceptions)?


Many thanks.

-- 
  Il computer è come la morosa:
  meno ci mettono mano gli altri e meglio è! ;-)
                            (Enrico)