Hello,

I have received an error message when trying to send an email with one recipient and about 50 people on the BCC 'copy to' facility.

Single emails are working ok.

The error message is

An unknown error has occurred.

Subject '8th Annual Barclaycard Leeds Reunion'
Server: 'auth.smtp.1and1.co.uk'
Windows Live Mail Error ID: 0x800CCC0B
Protocol: SMTP
Port: 587
Secure(SSL): Yes

the version of Windows Live Mail is

Version 2011 (Build 15.4.3502.0922)
Copyright © 2010 Microsoft Corporation. All rights reserved.

Microsoft® Office 2010 Proofing Tools
© 2010 Microsoft Corporation.  All rights reserved. 

[Original title: Windows Live Mail Unknown Error]

Any help would be appreciated.

Kevin