You might get the next error message:
Message Could Not Be Opened From Outbox Folder, Account: mail.yourdomain.com. MailAccount,Server: smtp.myisp.co.uk, Protocol:SMTP,Interface:25,Protect(SSL):No, Error Number:0x800420CB
The common reason for this difficulty is really a corrupted Outbox.dbx file. To repair it:
Click the Mail tab
Select a duplicate email account, and then click Remove. Keep carrying this out until all duplicated accounts have already been removed.
Still having difficulties with this particular error message? Take to renaming the Outbox.dbx file. Please notice that this will permanently delete any messages still in the outbox.
Right-click theStartbutton on your own desktop
Look for theOutbox.dbxfile
Right-click the file, click Delete, then click Yes
Start Outlook Express, then take to again.