E-mail error message

[STquiltshop]

When sending an e-mail to multiple names (blind carbon field) I am receiving
the following error message: 0X800CCC69

What does this mean?

 

[Nikki]

I am showing this error to belongs to Outlook Express clients.
You may want to post this question in that group.

OLEXP: Outlook Express Error Codes
http://ask.support.microsoft.com/kb/208814/
0x800CCC69 SMTP_550_MAILBOX_NOT_FOUND Mailbox not found.

Differences between Outlook and Outlook Express
http://ask.support.microsoft.com/kb/257824/EN-US/

Nikki Peterson