I have an email that failed to send in Windows Live Mail

I have an email that failed to send in Windows Live Mail and it's causing problems in sending mail.

I keep getting the message to delete the email, but I can't find it to delete. It's not in the Sent folder, nor the Drafts, it's not in the Inbox - I don't have an 'Outbox' . I've looked everywhere for it and can't find it - but if I don't delete it I'll continue to have problems.

Delete the photo email, create a new one, and try to send it again.

Server: 'mail.bigpond.com'
Windows Live Mail Error ID: 0x8CCC0003
Protocol: SMTP
Port: 25
Secure(SSL): No

Can anyone help me please?? I wasn't even sure which Category to choose as Windows Live Mail wasn't given as an option - if I posted in the wrong one can you please direct me to the right category please.

Thank you in advance

***Post moved by the moderator to the appropriate forum category.***