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chore(mail): pinned-version update check off, Gmail postscreen whitelist, docs

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- compose: ENABLE_UPDATE_CHECK=0 (image intentionally pinned to DMS v15.1.0).

- postscreen: permit Google SMTP outbound ranges (Gmail retries from rotating IPs,

  '450 PASS NEW' never completes) — keeps LinkedIn/Gmail mail out of the tarpit.

- README: DNS/ops notes; user-patches: whitelist copy path.
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eSlider
2026-09-16 14:59:45 +01:00
parent 4b3af3fad3
commit e1208be24e
4 changed files with 61 additions and 1 deletions
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compose.yaml
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@@ -31,6 +31,9 @@ services:
- PERMIT_DOCKER=none
- ONE_DIR=1
- SPOOF_PROTECTION=1
# No update nag: intentionally pinned to v15 (see header comment); v16 is a
# separate migration task. Disables the periodic docker-mailserver update check.
- ENABLE_UPDATE_CHECK=0
# Historical-archive mailboxes hold legacy .eml up to ~57 MB (gator #101
# defacto import) — raise the 10M Dovecot/Postfix message cap to 200M
# (POSTFIX_MESSAGE_SIZE_LIMIT sets both quota_max_mail_size and postfix