Replaces the panic-era burner-domain verification plan with an in-house
automatic catch-all rollout in the trucking/IFTA/UCR builders. Root-cause
classification of the 75k pre-DKIM-fix bounces showed ~55% were reputation/
auth (now fixed by DKIM signing) and only ~29% genuinely-dead mailboxes;
catch-all domains accept at RCPT time so they do not user-unknown bounce at
send, making a controlled in-house bleed safer than warming a separate burner.
catch_all_enabled() adds catch-all results only when warmup_day >=
CAMPAIGN_CATCH_ALL_MIN_DAY (21) AND the recent 2-day live bounce rate is below
CAMPAIGN_CATCH_ALL_MAX_BOUNCE_PCT (8%) on a >=300-sent sample; auto-reverts to
the clean smtp_valid/send_confirmed pool on the next run if bounces spike.
Short window so a past disaster cannot block the rollout forever and a fresh
spike trips fast. CAMPAIGN_INCLUDE_CATCH_ALL=1/0 still hard-overrides.
USABLE_FILTER (static) -> usable_filter() (per-run, memoized, one DB probe).
IFTA/UCR SELECT_SQL -> _select_sql() so tc.usable_filter() resolves at call
time, not import. 13 logic unit tests pass; live dry-run decision = OFF
(day 15 < 21 and recent 2d bounce 42% from the aging-out Jun-16 disaster).
The smtp_valid pool is only ~3k unsent — too small to sustain campaigns. SMTP
probing can't confirm catch-all/mx_unreachable deliverability; only a REAL send
can. burner_list_verify.py reconciles a verification send from a DISPOSABLE burner
domain (isolated from PW/carrierone reputation):
- hard bounce -> fmcsa_carriers.email_verify_result='hard_bounced' (excluded)
- delivered -> 'send_confirmed' (proven deliverable; PW campaigns send to it)
It tails the burner MTA mail.log (reuses bounce-watcher's status= pattern) and
writes back idempotently. The PW trucking filter now treats smtp_valid +
send_confirmed as sendable. docs/campaign-deliverability-plan.md captures the full
diagnosis, the burner design, and CAN-SPAM guardrails.
Remaining (needs a domain + isolated MTA identity — operator/infra decision):
stand up the burner domain, the verification-send worker, and a writeback cron.
