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EMAIL-WP-0005-T02: add GreenMail test harness
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Adds tests/harness/docker-compose.yml running GreenMail 2.1.12 (digest-pinned)
with SMTP 3025, IMAP 3143 and the API bound to 127.0.0.1 only, plus a
config/harness-imap.yml scanner profile and harness README. Auth is disabled
and no users are declared, so a mailbox is created on first login and per-test
users need no provisioning.

GreenMail standalone offers no STARTTLS, only plaintext or implicit TLS, while
SMTPProvider hardcoded starttls() -- so no send could reach it. SMTPProvider
now takes a security mode via EMAIL_CONNECT_SMTP_SECURITY, defaulting to
starttls. plaintext is refused for any non-loopback host, and hostnames are
never resolved to decide that, so a misconfigured deployment fails at startup
rather than sending credentials in the clear. Trusting GreenMail's self-signed
cert was rejected as the wider risk; see DECISIONS.md.

Verified end to end against the live harness: SMTPProvider.send -> GreenMail ->
ImapMailboxSource, and the documented scan-mailbox CLI. Suite: 52 passed with
the harness down.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
tegwick 2026-08-14 01:41:38 +02:00
parent 86f22c2e65
commit 89fd13ac2d
8 changed files with 329 additions and 4 deletions
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2
WORK-RECORDS.md
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@ -40,7 +40,7 @@
| task | EMAIL-WP-0004-T02 | done | — | workplans/EMAIL-WP-0004-transactional-mail-delivery-service.md |
| task | EMAIL-WP-0004-T03 | done | — | workplans/EMAIL-WP-0004-transactional-mail-delivery-service.md |
| task | EMAIL-WP-0004-T04 | done | — | workplans/EMAIL-WP-0004-transactional-mail-delivery-service.md |
| task | EMAIL-WP-0005-T01 | todo | — | workplans/EMAIL-WP-0005-test-mailbox-harness.md |
| task | EMAIL-WP-0005-T01 | done | — | workplans/EMAIL-WP-0005-test-mailbox-harness.md |
| task | EMAIL-WP-0005-T02 | todo | — | workplans/EMAIL-WP-0005-test-mailbox-harness.md |
| task | EMAIL-WP-0005-T03 | todo | — | workplans/EMAIL-WP-0005-test-mailbox-harness.md |
| task | EMAIL-WP-0005-T04 | todo | — | workplans/EMAIL-WP-0005-test-mailbox-harness.md |