Suddenly getting exception - javax.mail.MessagingException: * BYE System

Question

Hi,
Suddenly over the last week my application keeps throwing exceptions. This didnt happened before, so the code base hasnt changed! The exception I get is below. Tried searching the internet and tried what was suggested, but this hasnt helped.
javax.mail.MessagingException: * BYE System Error c63if10001534wej.179;
nested exception is:
     com.sun.mail.iap.ConnectionException: * BYE System Error c63if10001534wej.179
     at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:616)
     at javax.mail.Service.connect(Service.java:291)

Answer 1

Just remembered that there are demos with the libraries. I used the msgshow.java example. I changed it so that is just dumped the messages size. I wrapped this in a script so that the msgshow app gets called a 100 times. Anyway I get the same result.
i.e.
done 45 times
Total messages = 444
New messages = 0
done 46 times
Total messages = 444
New messages = 0
done 47 times
Total messages = 445
New messages = 0
done 48 times
Total messages = 445
New messages = 0
done 49 times
Oops, got exception! * BYE System Error w20if10206000wem.32
javax.mail.MessagingException: * BYE System Error w20if10206000wem.32;
nested exception is:
     com.sun.mail.iap.ConnectionException: * BYE System Error w20if10206000wem.32
     at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:668)
     at javax.mail.Service.connect(Service.java:295)
     at msgshow.main(msgshow.java:151)
Caused by: com.sun.mail.iap.ConnectionException: * BYE System Error w20if10206000wem.32
     at com.sun.mail.iap.Protocol.handleResult(Protocol.java:356)
     at com.sun.mail.imap.protocol.IMAPProtocol.login(IMAPProtocol.java:367)
     at com.sun.mail.imap.IMAPStore.login(IMAPStore.java:728)
     at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:648)
     ... 2 more
done 50 times
Total messages = 445
New messages = 0
done 51 times
Total messages = 445
New messages = 0
Hope someone can help with this.