NXDomain Server Logs

Dear Mark and List,

May 27 21:56:28 server01 named[268]: done dumping nameserver stats
May 27 21:56:37 server01 named[268]: sysquery: findns error (NXDOMAIN) 
on server01.alcdesigns.biz?
May 27 21:56:37 server01 last message repeated 2 times
May 27 21:57:28 server01 named[268]: dumping nameserver stats
May 27 21:57:28 server01 named[268]: done dumping nameserver stats

I have been receiving these logs and consulting pag 192 of the book 
"DNS and Bind" says:

"This is the number of queries the name server handled that resulted in 
responses saying that the domain name the querier specified didn't 
exit."

In my view, I see that, alcdesigns.biz is a legal domain and do exit.
server01.alcdesigns.biz also exits and it is a sub-domain of the domain 
alcdesigns.biz.
My point is not what the book tell me what it is, my point is how do I 
fix this? Is there a fix?
What should I do?

Looking at my Mail server logs I am also found some controversies:

May 27 2003 13:17:49    Finished starting other server processes ...
May 27 2003 13:17:49    -- Mail Server sucessfully started --
May 27 2003 13:17:49    Adding IP address "67.113.9.57" to allowed relay 
list.
May 27 2003 13:17:49    Adding IP address "127.0.0.1" to allowed relay 
list.
May 27 2003 13:17:49    Adding host "mail.alcdesigns.biz" (67.113.9.57) to 
allowed relay list.
May 27 2003 13:17:49    Adding IP address "192.168.1.2" to allowed relay 
list.
May 27 2003 13:17:49    Adding host "server01.alcdesigns.biz" 
(192.168.1.2) to allowed relay list.
May 27 2003 13:55:12    Resolver: HOST_NOT_FOUND.
May 27 2003 13:55:12    GetMXRecord for server01.alcdesigns.biz failed.
May 27 2003 13:55:12    Resolver: HOST_NOT_FOUND.
May 27 2003 13:55:12    GetMXRecord for server01.alcdesigns.biz failed.
May 27 2003 19:05:50    Resolver: HOST_NOT_FOUND.
May 27 2003 19:05:50    GetMXRecord for server01.alcdesigns.biz failed.

Thank You!
Eduardo
--
Eduardo Bonsi
beartcom@xxxxxxxxxxx