Some non-standard complying mail clients generate incorrectly encoded messages in languages other than English. While the program tries to cope with the situation, it could happen that we have not cover all the cases yet. When that happen the displayed message appears to be random codes that hard to discern. There are two cases, one is the message is transmitted correctly by the message viewer does not decode the message using the correct decoder and the second is the message is not correctly transmitted from the server to the client at all. The first case can easily be corrected by changing the "Encoding", which can be seen by right click on the content area. What encodings are allowed will be depend on the language of the content. There is no way to recover from the second situation since relevant information had been lost during the transmission.