nameserver timeout error message

[emekadavid]

I received this messages on my /var/spool/mail/root file.

"The following address had fatal permanent errors --- <root@nnaemeka>"

It goes on to quote RFC822; final recipient.
Then later:

451 nnaemeka: Name server timeout
Message could not be delivered for 5 days
Message will be deleted from queue. 
451 nnameka: Name server timeout

what could the message be about?

[george_toolan]

Is that the name of your computer? Try

uname -a

[emekadavid]

yes. nnaemeka is the name of my computer.

---------- Post added at 04:04 PM ---------- Previous post was at 03:51 PM ----------

yes. nnaemeka is the name of my computer.