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.
