On Sat, 14 Aug 2004 00:33:27 -0400, Christine Quiriy <[log in to unmask]>
wrote:

>  1 08/13 08/13 Thomas Tankengine <[log in to unmask]>
>                Last error: SMTP; 550 5.7.1 Your message was
>considered to be
>                            spam by the Tankengine Antispamming Policy
>and was
>                            not delivered to the recipient.

Delete the user(s).  (same is true for all 3 messages you asked about).