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# Disable strict MX checking (insecure):
sed -i '/^FORCED_MX_DNS_CHECK /d' /etc/exim.variables.conf.custom
echo 'FORCED_MX_DNS_CHECK = no' >> /etc/exim.variables.conf.custom
da build exim_conf
# Restore strict MX checking
sed -i '/^FORCED_MX_DNS_CHECK /d' /etc/exim.variables.conf.custom
da build exim_conf
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