Both Postfix bounce watchers extracted the queue-ID with regex postfix/[a-z]*[ (main) and postfix/[a-z0-9]*[ (hc), which only matched simple transports like qmgr/cleanup. When the MTA started rotating sends through the numbered warmup transports (out05-09/smtp, hcout1-3/smtp -- a transport/subprocess name WITH a slash), the QID extraction returned empty, so status=bounced lines never matched a tracked campaign QID and NO bounces were posted to listmonk since ~May 31. Result: dead mailboxes never got blocklisted and kept being retried, dragging the warmup bounce rate. Fix: regex postfix/[^[]*[ matches any transport/subprocess name up to the [pid]. Verified live on both watchers (out07/smtp and hcout1/smtp test bounces now detected + posted). Separately (server-side, not in repo): listmonk bounce.actions was null (no auto-action), so even posted bounces did nothing. Set hard=1->blocklist, complaint=1->blocklist; verified a real bounce now records + blocklists.
100 lines
3.8 KiB
Bash
100 lines
3.8 KiB
Bash
#!/bin/bash
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# Postfix bounce watcher — tails mail.log and reports bounces to Listmonk.
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# Only processes bounces for campaign emails (from=<noreply@performancewest.net>).
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# Ignores system cron bounces, postmaster notices, etc.
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#
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# Install: copy to /usr/local/bin/postfix-bounce-notify.sh
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# Service: systemd unit at /etc/systemd/system/pw-bounce-watcher.service
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LOG=/var/log/mail.log
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AUTH="api:6X1rKPea61N4rZ1S65Hx5zvqzbCj30F6nvEe9oVGH_Y"
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API="http://localhost:9100"
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# Get the UUID of the currently running campaign (if any)
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get_campaign_uuid() {
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curl -s -u "$AUTH" "$API/api/campaigns?status=running&per_page=1" 2>/dev/null \
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| grep -oP '"uuid":"[^"]*"' | head -1 | cut -d'"' -f4
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}
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# Track queue IDs from campaign sends (from=noreply@) so we only
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# report bounces for those, not for system emails.
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declare -A CAMPAIGN_QIDS
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CURRENT_UUID=""
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tail -F "$LOG" 2>/dev/null | while IFS= read -r line; do
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# Track queue IDs originating from campaign sender
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if echo "$line" | grep -q "from=<noreply@performancewest.net>"; then
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QID=$(echo "$line" | sed -n 's/.*postfix\/[^[]*\[\([0-9]*\)\]: \([A-Z0-9]*\):.*/\2/p')
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if [ -n "$QID" ]; then
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CAMPAIGN_QIDS[$QID]=1
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fi
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fi
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# Also track from=<info@performancewest.net>
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if echo "$line" | grep -q "from=<info@performancewest.net>"; then
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QID=$(echo "$line" | sed -n 's/.*postfix\/[^[]*\[\([0-9]*\)\]: \([A-Z0-9]*\):.*/\2/p')
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if [ -n "$QID" ]; then
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CAMPAIGN_QIDS[$QID]=1
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fi
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fi
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# Hard bounce: status=bounced
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if echo "$line" | grep -q "status=bounced"; then
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QID=$(echo "$line" | sed -n 's/.*postfix\/[^[]*\[\([0-9]*\)\]: \([A-Z0-9]*\):.*/\2/p')
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RCPT=$(echo "$line" | sed -n 's/.*to=<\([^>]*\)>.*/\1/p')
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# Only report if this was a campaign email
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if [ -n "$QID" ] && [ -n "$RCPT" ] && [ -n "${CAMPAIGN_QIDS[$QID]+x}" ]; then
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# Refresh campaign UUID periodically
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if [ -z "$CURRENT_UUID" ]; then
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CURRENT_UUID=$(get_campaign_uuid)
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fi
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UUID_FIELD=""
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if [ -n "$CURRENT_UUID" ]; then
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UUID_FIELD=", \"campaign_uuid\": \"$CURRENT_UUID\""
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fi
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curl -s -u "$AUTH" -X POST "$API/webhooks/bounce" \
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-H "Content-Type: application/json" \
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-d "{\"email\": \"$RCPT\", \"source\": \"postfix\", \"type\": \"hard\"$UUID_FIELD}" \
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>/dev/null 2>&1
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logger -t bounce-notify "Hard bounce: $RCPT (qid=$QID, campaign=$CURRENT_UUID)"
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unset CAMPAIGN_QIDS[$QID]
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fi
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fi
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# Soft bounce with permanent 5xx in the response
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if echo "$line" | grep -q "status=deferred" && echo "$line" | grep -qE "said: 5[0-9][0-9]"; then
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QID=$(echo "$line" | sed -n 's/.*postfix\/[^[]*\[\([0-9]*\)\]: \([A-Z0-9]*\):.*/\2/p')
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RCPT=$(echo "$line" | sed -n 's/.*to=<\([^>]*\)>.*/\1/p')
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if [ -n "$QID" ] && [ -n "$RCPT" ] && [ -n "${CAMPAIGN_QIDS[$QID]+x}" ]; then
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if [ -z "$CURRENT_UUID" ]; then
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CURRENT_UUID=$(get_campaign_uuid)
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fi
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UUID_FIELD=""
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if [ -n "$CURRENT_UUID" ]; then
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UUID_FIELD=", \"campaign_uuid\": \"$CURRENT_UUID\""
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fi
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curl -s -u "$AUTH" -X POST "$API/webhooks/bounce" \
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-H "Content-Type: application/json" \
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-d "{\"email\": \"$RCPT\", \"source\": \"postfix\", \"type\": \"soft\"$UUID_FIELD}" \
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>/dev/null 2>&1
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logger -t bounce-notify "Soft bounce (5xx): $RCPT (qid=$QID, campaign=$CURRENT_UUID)"
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fi
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fi
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# Clean up old QIDs when they're removed from queue
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if echo "$line" | grep -q "removed$"; then
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QID=$(echo "$line" | sed -n 's/.*postfix\/[^[]*\[\([0-9]*\)\]: \([A-Z0-9]*\):.*/\2/p')
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if [ -n "$QID" ]; then
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unset CAMPAIGN_QIDS[$QID] 2>/dev/null
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fi
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# Refresh campaign UUID every 100 removed messages
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REMOVED_COUNT=$((${REMOVED_COUNT:-0} + 1))
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if [ $((REMOVED_COUNT % 100)) -eq 0 ]; then
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CURRENT_UUID=$(get_campaign_uuid)
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fi
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fi
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done
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