Exchange Errors

"Mail could not be received at this time" "Logon failure: unknown user name or bad password" with email account connected to Exchange 2003 server.

Workarounds/fix:

1. Delete emails that have non-Roman characters
2. Install hotfix on Exchange server 2003

For more info, read this were other customers reported the same issue and confirmed the fix.

Entourage cannot connect to the Exchange Public Folders server. Please verify that the public folder settings are correct.

Use the same settings what you have in the Exchange Server field in the public folder settings and remove /exchange (if you have) and use /public and see if this help.