* feat: score campaign copy where it actually matters, on the message the recipient receives rather than only the template in the editor: warmlint.Score already ran at save time through /templates/score, but nothing checked the copy after merge fields, spintax, A/B selection and AI blocks resolved, which is exactly where a clean template becomes Hi comma or picks the one spammy spintax branch; the send path now scores the rendered message and writes one campaign-feed warning per step per day rather than one per recipient, RunPreflight gains the same check across every step, warmlint gains image-heavy, many-images and attachment heuristics, and the whole thing is advisory behind Settings > Sending > Content checks; the launch dialog also finally calls POST /campaigns/:id/preflight, whose report had no UI at all and so never reached the person about to send
* feat: fix three defects the review found in the content lint: a preflight run that could not read the campaign's steps left the worst score at 100 and reported the check as PASSED, which is the one outcome a check that did not run must never produce, so it now reports failed with the reason; the send-time path read organization settings while preflight read campaign-effective ones, so a campaign that turned the check off or moved its floor was still warned, and EffectiveSettings is now exposed and used by both; and the check-then-insert dedupe let concurrent recipients of the same low-scoring step each find nothing and each write, so it becomes one advisory-locked conditional insert proven by twelve racers producing exactly one feed entry
Add an advisory content score endpoint that reuses warmup linting heuristics for campaign templates.
Surface the score in the sequence editor so users can check subject and body deliverability before sending.
Add warmup content generation and admin review surfaces, plus mailbox warmup appeal/status APIs.
Track warmup engagement and tampering signals so unsafe mailboxes can be handled by the warmup flow.
Matthew Meszaros