mail: offload per-account Archive folders to Hetzner Storage Box #237

New issue

Open

opened 2026-07-26 14:06:45 +02:00 by dominik.polakovics · 0 comments

dominik.polakovics commented

2026-07-26 14:06:45 +02:00

Owner

The mail host's disk is running full. Most of the growth is long-term mail that users keep but rarely touch.

Plan (agreed with Dominik):

Mount a new Storage Box sub-account via CIFS at /mnt/mail-archive (same sops-credentials + systemd-automount pattern as the Immich originals mount on web-arm).
Add a Dovecot namespace Archive. whose maildir location lives on the mount, with INDEX and CONTROL kept on local disk so index/cache/uidlist/fts stay fast and only message bodies go over CIFS.
Archiving is manual: users (or their client's archive action) move mail into Archive/.
Quota: unchanged — the user quota root already spans all private namespaces, so archived mail still counts.
Backup: rely on Hetzner storage-box snapshots (like Immich); the mount stays outside borg's paths.

Out of scope for the config change (ops follow-ups): create the sub-account, add the SMB credentials secret, enable snapshots, migrate existing .Archive* maildirs onto the mount.

The mail host's disk is running full. Most of the growth is long-term mail that users keep but rarely touch. Plan (agreed with Dominik): - Mount a new Storage Box sub-account via CIFS at /mnt/mail-archive (same sops-credentials + systemd-automount pattern as the Immich originals mount on web-arm). - Add a Dovecot namespace `Archive.` whose maildir location lives on the mount, with INDEX and CONTROL kept on local disk so index/cache/uidlist/fts stay fast and only message bodies go over CIFS. - Archiving is manual: users (or their client's archive action) move mail into Archive/. - Quota: unchanged — the user quota root already spans all private namespaces, so archived mail still counts. - Backup: rely on Hetzner storage-box snapshots (like Immich); the mount stays outside borg's paths. Out of scope for the config change (ops follow-ups): create the sub-account, add the SMB credentials secret, enable snapshots, migrate existing .Archive* maildirs onto the mount.

dominik.polakovics referenced this issue from a commit

2026-07-26 14:08:55 +02:00

feat(mail): offload per-account Archive folders to Hetzner Storage Box

dominik.polakovics referenced this issue from a pull request that will close it,

2026-07-26 14:09:13 +02:00

feat(mail): offload per-account Archive folders to Hetzner Storage Box #238