diff --git a/server/config/default.yaml b/server/config/default.yaml
index 14b07bf9..e23cc9c0 100644
--- a/server/config/default.yaml
+++ b/server/config/default.yaml
@@ -128,7 +128,8 @@ mysql:
   # The timezone configured on the MySQL server. This can be 'local', 'Z', or an offset in the form +HH:MM or -HH:MM
   # If the MySQL server runs on the same server as Mailtrain, use 'local'
   timezone: local
-
+  multipleStatements: true
+  
 verp:
   # Enable to start an MX server that detects bounced messages using VERP
   # In most cases you do not want to use it
diff --git a/server/models/lists.js b/server/models/lists.js
index ada16cf8..84282977 100644
--- a/server/models/lists.js
+++ b/server/models/lists.js
@@ -207,13 +207,13 @@ async function create(context, entity) {
 
         await knex.schema.raw('CREATE TABLE `subscription__' + id + '` (\n' +
             '  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,\n' +
-            '  `cid` varchar(255) CHARACTER SET ascii NOT NULL,\n' +
-            '  `email` varchar(255) CHARACTER SET utf8 DEFAULT NULL,\n' +
-            '  `hash_email` varchar(255) CHARACTER SET ascii NOT NULL,\n' +
+            '  `cid` varchar(255) NOT NULL,\n' +
+            '  `email` varchar(255) DEFAULT NULL,\n' +
+            '  `hash_email` varchar(255) NOT NULL,\n' +
             '  `source_email` int(11) DEFAULT NULL,\n' +  // Altough this is a reference to an import, it is represented as signed int(11). This is because we use negative values for constant from SubscriptionSource
             '  `opt_in_ip` varchar(100) DEFAULT NULL,\n' +
             '  `opt_in_country` varchar(2) DEFAULT NULL,\n' +
-            '  `tz` varchar(100) CHARACTER SET ascii DEFAULT NULL,\n' +
+            '  `tz` varchar(100) DEFAULT NULL,\n' +
             '  `status` tinyint(4) unsigned NOT NULL DEFAULT \'1\',\n' +
             '  `is_test` tinyint(4) unsigned NOT NULL DEFAULT \'0\',\n' +
             '  `status_change` timestamp NULL DEFAULT NULL,\n' +
@@ -233,7 +233,7 @@ async function create(context, entity) {
             '  KEY `latest_click` (`latest_click`),\n' +
             '  KEY `created` (`created`),\n' +
             '  KEY `updated` (`updated`)\n' +
-            ') ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;\n');
+            ') ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE utf8mb4_general_ci;\n');
 
         await shares.rebuildPermissionsTx(tx, { entityTypeId: 'list', entityId: id });
 
diff --git a/server/setup/knex/migrations/20200824160149_convert_to_utf8mb4.js b/server/setup/knex/migrations/20200824160149_convert_to_utf8mb4.js
new file mode 100644
index 00000000..e1a184f3
--- /dev/null
+++ b/server/setup/knex/migrations/20200824160149_convert_to_utf8mb4.js
@@ -0,0 +1,17 @@
+
+exports.up = function(knex, Promise) {
+  return knex.raw('SELECT table_name FROM information_schema.tables WHERE table_schema = ?', [knex.client.database()])
+    .then(function(tablas) {
+       let sql="";
+       tablas=tablas[0];
+       for(let i=0; i<tablas.length; i++) {
+	 sql+="ALTER TABLE "+tablas[i].table_name+" CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;";
+       }
+       //console.log(sql);
+       return knex.raw(sql);
+    });
+};
+
+exports.down = function(knex, Promise) {
+  
+};