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https://bugs.exim.org/show_bug.cgi?id=2743

Bug ID: 2743
Summary: Tainted spool filename during immediate delivery from
named queue
Product: Exim
Version: 4.94
Hardware: x86-64
OS: Linux
Status: NEW
Severity: bug
Priority: medium
Component: Queues
Assignee: unallocated@exim.org
Reporter: exim@mahadri.com
CC: exim-dev@exim.org

exim 4.94.2 has a tainted filename error for a spool file during immediate
delivery from a named queue.

Immediate delivery fails with a tainted filename and spool error:
$ sendmail -t -i -f from@example.com < email

exim[2]: 1lgYBc-0002Q8-N2 <= from@example.com U=example P=local Q=example from
<from@example.com> for to@example.net
exim[3]: 1lgYBc-0002Q8-N2 Tainted filename
'/var/spool/exim/example/input//1lgYBc-0002Q8-N2-D'
exim[3]: 1lgYBc-0002Q8-N2 Spool error for
/var/spool/exim/example/input//1lgYBc-0002Q8-N2-D: Permission denied

A queue runner delivers successfully:
# exim -qGexample

exim[4]: Start 'example' queue run: pid=4
exim[5]: 1lgYBc-0002Q8-N2 => to@example.net F=<from@example.com> Q=example
C="250 ok" QT=10s DT=1s
exim[5]: 1lgYBc-0002Q8-N2 Completed QT=10s
exim[4]: End 'example' queue run: pid=4

# begin exim.conf

acl_not_smtp_start = not_smtp_start

begin acl

not_smtp_start:
accept sender_domains = example.com
queue = example
accept

# end exim.conf

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