The owner agreed the item on 2026-10-12 (option 1 of the roadmap entry: store
the lines). plans/delivery-log-storage.md records what that means in detail:
every mail.log line headed by a queue id goes into send_log_lines with the
line's own time; a line is a row's when the id matches and its time lies
within the row's queue lifetime, which is the bound against Postfix reusing
ids; a line whose id has no send-log row is deleted after an hour, which is
both the retention and the clean-up of inbound and bounce lines; the page
reads the table and falls back to the current file for rows older than it.
Eight checklist steps, cut 2.2.0.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>