[Postfix] Remove Zeyple, base on Buster

data/Dockerfiles/postfix/postfix.sh

@@ -4,6 +4,12 @@ trap "postfix stop" EXIT
 
 [[ ! -d /opt/postfix/conf/sql/ ]] && mkdir -p /opt/postfix/conf/sql/
 
+# Wait for MySQL to warm-up
+while ! mysqladmin status --socket=/var/run/mysqld/mysqld.sock -u${DBUSER} -p${DBPASS} --silent; do
+  echo "Waiting for database to come up..."
+  sleep 2
+done
+
 cat <<EOF > /etc/aliases
 # Autogenerated by mailcow
 null: /dev/null
@@ -286,11 +292,6 @@ query = SELECT goto FROM spamalias
     AND validity >= UNIX_TIMESTAMP()
 EOF
 
-# Reset GPG key permissions
-mkdir -p /var/lib/zeyple/keys
-chmod 700 /var/lib/zeyple/keys
-chown -R 600:600 /var/lib/zeyple/keys
-
 # Fix Postfix permissions
 chown -R root:postfix /opt/postfix/conf/sql/
 chmod 640 /opt/postfix/conf/sql/*.cf