You may get the following error message:
 

• Message Could Not Be Opened From Outbox Folder, Account: pop.yourname.
   
• MailAccount',Server:'smtp.dslconnect.co.uk', Protocol:SMTP,Port:25,Secure(SSL):No, Error Number:0x800420CB

   

The usual cause of this problem is an Outbox.dbx file which has become corrupted. To fix it,

• Click Tools
• then Accounts
• Click the Mail tab
• Click a duplicate mail account, and then click Remove . Keep doing this until all duplicated have been removed.
• Click Close

Still having problems with this error message? Try renaming the Outbox.dbx file, although this will permanently delete any messages still in the outbox.

• Close Outlook Express.
• Right-click the Start button on your PC's desktop
• click Find or Search
• Search for the Outbox.dbx file
• Right-click the file, click Delete, and then click Yes
• Start Outlook Express, and then try again