I googled and hunted through documentation for six hours trying to
figure out if exim4 was doing a reverse lookup or not, and how to turn
it on and off.
I see this line in 30_exim4-config_check_rcpt
.ifdef CHECK_RCPT_REVERSE_DNS
warn
message = X-Host-Lookup-Failed: Reverse DNS lookup failed for
$sender_host_$
condition = ${if
and{{def:sender_host_address}{!def:sender_host_name}}\
{yes}{no}}
.endif
But I have no idea where one would define or undefine CHECK_RCPT_REVERSE_DNS
I also understand there is some magical way to "rebuild" the real conf
file from all the fake conf files called update-exim4.conf
I'm sure there must be some easy way to turn things on or off for exim4
without having to run through dpkg-reconfigure and have to guess at
answers to every single option.
any help?
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