I think I have found a fix for this issue.
My hunch is there is something buggy about the run{} command when
invoking programs directly. I wrapped the contents of run with an
explicit shell invocation, e.g.
condition = ${run{/usr/bin/spfquery.mail-spf-perl \
--ip ${quote:$sender_host_address} \
--scope mfrom \
--identity ${quote:$sender_address}} \
{no}{${if eq {$runrc}{1}{yes}{no}}}}
now becomes
condition = ${run{/bin/bash -c "/usr/bin/spfquery.mail-spf-perl \
--ip ${quote:$sender_host_address} \
--scope mfrom \
--identity ${quote:$sender_address}"} \
{no}{${if eq {$runrc}{1}{yes}{no}}}}
Dominic, are you still using mantic or are you on noble by now? I'd be
glad to prepare a package for you to test if you are comfortable with
that. Alternatively you can test the changes I mentioned here. This code
is found in /etc/exim4/exim4.conf.template but of course be careful if
you are modifying this file on a live system.
I've tested this code change with a valid E2E case with SPF, and I also
tested a local lxc system with no SPF to ensure SPF validation failures
occur correctly.
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https://bugs.launchpad.net/bugs/2056372
Title:
Enabling SPF checks with CHECK_RCPT_SPF doesn't work
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