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feat(mail): 增强邮件限流与配额配置

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- 新增 IMAP/POP3 事件表与清理任务，并接入 Dovecot auth policy。
- 暴露默认权限限额接口，前端权限组页面改为动态读取。
- 为 Dovecot 配置用户配额、连接数限制和 auth policy。
This commit is contained in:
LanQin_
2026-06-23 11:25:38 +08:00
parent 36b4c4c60f
commit 23b04bd343
9 changed files with 179 additions and 7 deletions
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deploy/dovecot/dovecot-sql.conf.ext
+1 -1
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@@ -2,4 +2,4 @@ driver = sqlite
connect = /data/lanqin.db
default_pass_scheme = BLF-CRYPT
password_query = SELECT address AS user, password_hash AS password FROM mailboxes WHERE address = '%u' AND status = 'active'
user_query = SELECT '/var/mail/vhosts/' || d.name || '/' || m.local_part AS home, 'maildir:/var/mail/vhosts/' || d.name || '/' || m.local_part || '/Maildir' AS mail, 5000 AS uid, 5000 AS gid FROM mailboxes m JOIN domains d ON d.id=m.domain_id WHERE d.name=lower(substr('%u', instr('%u', '@') + 1)) AND m.local_part=lower(CASE WHEN instr(substr('%u', 1, instr('%u', '@') - 1), '+') > 0 THEN substr(substr('%u', 1, instr('%u', '@') - 1), 1, instr(substr('%u', 1, instr('%u', '@') - 1), '+') - 1) ELSE substr('%u', 1, instr('%u', '@') - 1) END) AND m.status='active' AND d.status='active' UNION SELECT '/var/mail/vhosts/' || lower(substr('%u', instr('%u', '@') + 1)) || '/__unregistered__' AS home, 'maildir:/var/mail/vhosts/' || lower(substr('%u', instr('%u', '@') + 1)) || '/__unregistered__/Maildir' AS mail, 5000 AS uid, 5000 AS gid WHERE EXISTS (SELECT 1 FROM system_settings WHERE key='catchAllEnabled' AND value='true') AND EXISTS (SELECT 1 FROM domains WHERE name=lower(substr('%u', instr('%u', '@') + 1)) AND status='active') AND NOT EXISTS (SELECT 1 FROM mailboxes m JOIN domains d ON d.id=m.domain_id WHERE d.name=lower(substr('%u', instr('%u', '@') + 1)) AND m.local_part=lower(CASE WHEN instr(substr('%u', 1, instr('%u', '@') - 1), '+') > 0 THEN substr(substr('%u', 1, instr('%u', '@') - 1), 1, instr(substr('%u', 1, instr('%u', '@') - 1), '+') - 1) ELSE substr('%u', 1, instr('%u', '@') - 1) END) AND m.status='active')
user_query = SELECT '/var/mail/vhosts/' || d.name || '/' || m.local_part AS home, 'maildir:/var/mail/vhosts/' || d.name || '/' || m.local_part || '/Maildir' AS mail, 5000 AS uid, 5000 AS gid, '*:storage=' || CAST(m.quota_mb AS TEXT) || 'M' AS quota_rule FROM mailboxes m JOIN domains d ON d.id=m.domain_id WHERE d.name=lower(substr('%u', instr('%u', '@') + 1)) AND m.local_part=lower(CASE WHEN instr(substr('%u', 1, instr('%u', '@') - 1), '+') > 0 THEN substr(substr('%u', 1, instr('%u', '@') - 1), 1, instr(substr('%u', 1, instr('%u', '@') - 1), '+') - 1) ELSE substr('%u', 1, instr('%u', '@') - 1) END) AND m.status='active' AND d.status='active' UNION SELECT '/var/mail/vhosts/' || lower(substr('%u', instr('%u', '@') + 1)) || '/__unregistered__' AS home, 'maildir:/var/mail/vhosts/' || lower(substr('%u', instr('%u', '@') + 1)) || '/__unregistered__/Maildir' AS mail, 5000 AS uid, 5000 AS gid, '*:storage=1024M' AS quota_rule WHERE EXISTS (SELECT 1 FROM system_settings WHERE key='catchAllEnabled' AND value='true') AND EXISTS (SELECT 1 FROM domains WHERE name=lower(substr('%u', instr('%u', '@') + 1)) AND status='active') AND NOT EXISTS (SELECT 1 FROM mailboxes m JOIN domains d ON d.id=m.domain_id WHERE d.name=lower(substr('%u', instr('%u', '@') + 1)) AND m.local_part=lower(CASE WHEN instr(substr('%u', 1, instr('%u', '@') - 1), '+') > 0 THEN substr(substr('%u', 1, instr('%u', '@') - 1), 1, instr(substr('%u', 1, instr('%u', '@') - 1), '+') - 1) ELSE substr('%u', 1, instr('%u', '@') - 1) END) AND m.status='active')