On 2025/09/20 11:26 AM, Thomas Hochstein via Exim-dev wrote:
That's not Exim sending those mails, but a cronjob* from the exim4-base
Debian package, located at /etc/cron.daily/exim4-base with those lines:
| if [ "$E4BCD_WATCH_PANICLOG" != "no" ]; then
| if [ -s "/var/log/exim4/paniclog" ]; then
| if [ -x "/usr/local/lib/exim4/nonzero_paniclog_hook" ]; then
| /usr/local/lib/exim4/nonzero_paniclog_hook
| fi
| if [ -z "$E4BCD_PANICLOG_NOISE" ] || grep -vq "$E4BCD_PANICLOG_NOISE"
/var/log/exim4/paniclog; then
| log_this "ALERT: exim paniclog /var/log/exim4/paniclog has non-zero size,
mail system possibly broken"
| if ! printf "Subject: exim paniclog on %s has non-zero size\nTo: %s\n\nexim
paniclog /var/log/exim4/paniclog on %s has non-zero size, mail system might be broken. Up
to ${E4BCD_PANICLOG_LINES} lines are quoted below.\n\n%s\n" \
| "${HOSTNAME}" "${E4BCD_PANICLOG_REPORT_TO}" "${HOSTNAME}" \
| "$(if [ -z "$E4BCD_PANICLOG_NOISE" ] ; then tail -n "${E4BCD_PANICLOG_LINES}"
/var/log/exim4/paniclog ; else grep -v "$E4BCD_PANICLOG_NOISE" /var/log/exim4/paniclog | tail -n
"${E4BCD_PANICLOG_LINES}" ; fi)" \
| | exim4 "${E4BCD_PANICLOG_REPORT_TO}"; then
| log_this "PANIC: sending out e-mail warning has failed, exim has non-zero
return code"
At the very least they could put " awk '{print substr($0, 0, 998)}' " into
that pipeline.
Or, there exists MIME::QuotedPrint.
--
Cheers,
Jeremy
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