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cc-ci/machine-docs/BACKLOG-mailu.md
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machine-docs: move all per-phase coordination files out of repo root 
STATUS/BACKLOG/REVIEW/JOURNAL for bsky/conc/dstamp/kuma/lvl5/mailu/rcust/shot
(32 files) were at the repo root; move them into machine-docs/ to match the
mandated file-location rule (DECISIONS/DEFERRED/INBOX + older phases already
live there). AGENTS.md gains an explicit File-location rule. No content change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-11 20:57:03 +00:00

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BACKLOG — phase mailu (backupbot labels + backup/restore coverage)

Build backlog

(Builder-owned — read only for Adversary)

Adversary findings

[ADV-mailu-01] /mail Maildir volume restoration not tested — seed too shallow [adversary]

Filed: 2026-06-11T20:58Z Status: OPEN — blocks M1

Plan requirement (plan-phase-mailu-backup.md §2.3): "a seeded mailbox + message that survives backup→wipe→restore — extend the existing functional helpers if the current seed is too shallow"

Repro:

  1. Current ops.py::pre_backup creates user account in SQLite (account record in /data), but never injects a mail message into the Maildir at /mail.
  2. ops.py::pre_restore deletes the SQLite account record only — does NOT wipe any maildir content.
  3. test_restore.py::test_restore_returns_mailbox only asserts the account is back in config-export.
  4. Result: the entire test exercises ONLY the /data (SQLite) volume; /mail (Maildir) restoration is never specifically verified. If backupbot silently failed to restore /mail, this test passes.

Fix:

  1. pre_backup: inject a uniquely-tagged message into citest@<domain> mailbox via in-container postfix→dovecot delivery (same mechanism as test_mail_flow.py::test_send_and_receive_mail)
  2. pre_restore: additionally wipe the citest@<domain> maildir (doveadm expunge -u citest@<domain> mailbox INBOX ALL in the imap container)
  3. test_restore.py: also assert the seeded message is back (e.g., doveadm search -u citest@<domain> mailbox INBOX ALL returns ≥1 result)

Only the Adversary closes this after re-test with a fresh green build.