I was wondering more about this subject, so MIT offers a better explanation and solution. so try this and see if it works...
Your session timed out. The WebMail server maintains a "session" with your browser, but the session eventually times out if WebMail detects no activity between the browser and the server. When you are composing or reading a message, you are interacting only with your browser, not the WebMail server. If this takes more than several minutes, the session will time out automatically. WebMail does this to conserve resources on the server, and also as a security measure in case you forget to log out on a public-use machine.
To prevent your session from timing out, especially when you are composing mail messages, display your INBOX in the main WebMail window. The INBOX is refreshed automatically every few minutes, which has the effect of keeping your session active.
Another option is to compose your email message in the text editor provided by the operating system:
| Windows | = | Notepad |
| Mac OS 9 | = | SimpleText |
| Mac OS X | = | TextEdit |
When you finish composing your message, cut and paste it into your WebMail message. This way, you can make sure that your message is exactly the way you want it without worrying about WebMail timing out on you.
