On Mon, 20 Sep 2010 17:26:09 -0400, VtSkier
wrote:

Check this out.

A News (NNTP) error occurred: mail: RCPT
(554 5.7.1
: Relay access denied)

This is the message I got when I've tried to post
either by "reply" or "write" a new post.

Any advice on this would be appreciated.
I'm using the Ubuntu version of Thunderbird
as my mail reader.

Thanks in advance.
Never seen this before, have you recently changed/added/upgraded any
software?