[Docker API] Use TLS encryption for communication with "on-the-fly" created key paris (non-exposed)

[Docker API] Create pipe to pass Rspamd UI worker password
[Dovecot] Pull Spamassassin ruleset to be read by Rspamd (MANY THANKS to Peer Heinlein!)
[Dovecot] Garbage collector for deleted maildirs (set keep time via MAILDIR_GC_TIME which defaults to 1440 minutes)
[Web] Flush memcached after mailbox item changes, fixes #1808
[Web] Fix duplicate IDs, fixes #1792
[Compose] Use SQL sockets
[PHP-FPM] Update APCu and Redis libs
[Dovecot] Encrypt maildir with global key pair in crypt-vol-1 (BACKUP!), also fixes #1791
[Web] Fix deletion of spam aliases
[Helper] Add "crypt" to backup script
[Helper] Override file for external SQL socket (not supported!)
[Compose] New images for Rspamd, PHP-FPM, SOGo, Dovecot, Docker API, Watchdog, ACME, Postfix

helper-scripts/ext_sql_sock.docker-compose.override.yml

@@ -0,0 +1,31 @@
+version: '2.1'
+services:
+
+    php-fpm-mailcow:
+      volumes:
+        - /var/run/mysqld/mysqld.sock:/var/run/mysqld/mysqld.sock
+
+    sogo-mailcow:
+      volumes:
+        - /var/run/mysqld/mysqld.sock:/var/run/mysqld/mysqld.sock
+
+    dovecot-mailcow:
+      volumes:
+        - /var/run/mysqld/mysqld.sock:/var/run/mysqld/mysqld.sock
+
+    postfix-mailcow:
+      volumes:
+        - /var/run/mysqld/mysqld.sock:/var/run/mysqld/mysqld.sock
+
+    acme-mailcow:
+      volumes:
+        - /var/run/mysqld/mysqld.sock:/var/run/mysqld/mysqld.sock
+
+    watchdog-mailcow:
+      volumes:
+        - /var/run/mysqld/mysqld.sock:/var/run/mysqld/mysqld.sock
+
+    mysql-mailcow:
+      image: alpine:3.8
+      command: /bin/true
+      restart: "no"