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Add environment option to filter rejected emails

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myve 2025-09-28 11:41:07 +00:00
commit acc168d13e
2 changed files with 19 additions and 6 deletions
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22
build/run/docker-entrypoint/init.d/70-reject.sh
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@ -1,14 +1,24 @@
#!/usr/bin/env bash
# Check filters
unset filters
if [ ${MYVEMAIL_REJECT_FILTER} ]
then
filters+=(${MYVEMAIL_REJECT_FILTER//,/ })
fi
# Notify if rejected emails were found
while true
do
bash -c 'tail -n +0 --pid=$$ -f /var/log/mail/maillog.debug* | grep --line-buffered -F -v -f /var/log/mail/reject.log | { sed "/NOQUEUE: reject/q" && kill $$ ;}'
grep -h "NOQUEUE: reject" /var/log/mail/maillog.debug* | grep -F -v -f /var/log/mail/reject.log >>/var/log/mail/reject.log
cat <<- mail | sendmail reject@${MYVEMAIL_DOMAIN}
From: reject@${MYVEMAIL_DOMAIN}
To: reject@${MYVEMAIL_DOMAIN}
Subject: Rejected email found
if ! tail -n 1 /var/log/mail/reject.log | grep -i -q "$(printf '%s\|' ${filters[@]:-impossible-string-that-would-never-be-grepped} | sed 's|\\\|$||')"
then
cat <<- mail | sendmail reject@${MYVEMAIL_DOMAIN}
From: reject@${MYVEMAIL_DOMAIN}
To: reject@${MYVEMAIL_DOMAIN}
Subject: Rejected email found
$(tail -n 1 /var/log/mail/reject.log)
mail
$(tail -n 1 /var/log/mail/reject.log)
mail
fi
done >/dev/null &