+ mprom=/var/lib/prometheus/node-exporter/mailtest-check.prom
+ if grep -qE 'mailtest_check_(unexpected|missing).*[^ ][^0]$' $mprom; then
+ chars+=("MTEST_SPAM")
+ fi
+ mtest_found=false
+ for t in $(grep -E ^mailtest_check_last_usec $mprom | awk '{print $NF}'); do
+ if (( t + 60 * 20 < EPOCHSECONDS )); then
+ mtest_found=true
+ fi
+ done
+ if $mtest_found; then
+ chars+=("MTEST_AGE")
+ fi
+