How to include 'X-No-Archive: yes' in the headers automatically?

'X-No-Archive: yes'

Is their an automatic way to include this in the headers using outlook
express?

 

Show all headers.
Enter something into the Keyword field, like "world". Then hit the Enter
key.
The Keyword field should add a line when you hit Enter within it.
Now enter the "X-No-Archive: yes" header on the new line.

Not what value this header has. I think Google Groups is the only news
server that obeys this header. Also, anyone replying to your post and
quoting it would obviate you trying to not archive it. So, for example,
my reply here which quotes your original message and which itself does
not use the X-No-Archive header means your post will still get archived
and be searchable for however long Google Groups keeps it or other news
servers to which your post gets copied.

There is no automatic way to add any user-defined headers. The above
manual method is how I know to enter a header.

 

Not directly no.
First, take a look at my headers.
Notice I am using OE 6.
Then checkout www.fidolook.com
This plugin will give your OE posts the look of someone using forte agent.
It also has a few other features OE never will, like decoding yenc binaries.