Check for 'Too many concurrent connections to this mailbox'

app/src/main/java/eu/faircode/email/ServiceSynchronize.java

@@ -1467,8 +1467,9 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
 
     private boolean isMaxConnections(String message) {
         return (message != null &&
-                (message.contains("Maximum number of connections") /* Dovecot */ ||
-                        message.contains("Too many simultaneous connections") /* Gmail */));
+                (message.contains("Too many simultaneous connections") /* Gmail */ ||
+                        message.contains("Maximum number of connections") /* Dovecot */ ||
+                        message.contains("Too many concurrent connections") /* to this mailbox */));
     }
 
     private ConnectivityManager.NetworkCallback networkCallback = new ConnectivityManager.NetworkCallback() {