I'm trying to do a custom DNS lookup checking for $sender_address_domain DMARC
rules, and I seem to be missing some fundamental understanding of how to
combine string expansion items. I've been reading manual sections 9.10 and
Chapter 11.
Right now I have the following:
acl_check_data:
[...]
warn
set acl_m_dm1 = ${lookup dnsdb{>\n,; txt=_dmarc.$sender_address_domain}\
{$value} fail}
set acl_m_dm2 = ${extract {p}{$acl_m_dm1}}
#condition = ${if def:acl_m_dm1}
condition = ${if and{ {def:acl_m_dm2} {!eq {$acl_m_dm2} {none;}} }}
logwrite = $sender_address_domain DMARC lookup = $acl_m_dm1 :: $acl_m_dm2
And instead I'd like to be able to combine these operations and store the
result in a single variable, such as:
set acl_m_dm1 = ${extract { \
${lookup \dnsdb{>\n,; txt=_dmarc.$sender_address_domain} \
{$value} fail}
}{p}{$acl_m_dm1} }
... but this always seems to lead to an error "missing or misplaced { or }"
even when the {'s match the }'s, so I think I'm missing something else
concerning how to combine these.
Any information on how to do this would be appreciated.
Thanks.
-- Chris
--
Chris Knadle
[email protected]
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