Error 0x800CCC18

Error 0x800CCC18

CAUSE
Either the Outlook Express POP3 client is not able to access the mailbox because it does not exist or there is a custom recipient in the Exchange Server organization that has the same alias as you do, and Exchange Server is attempting to access the custom recipient before accessing your mailbox. WORKAROUND In Outlook Express, try using Clear Text, which is the Log on using option under the Servers tab of the mail account.
To do so:
1. On the Tools menu, click Accounts. This will bring up several tabs.
2. If you select any listed mail account, the properties will have a Servers tab with the Log on using option.
3. Select the Clear Text option.