Norton Antispam Don't Like DIYnot

Yesterday I built up a Barebones PC which came with Norton Internet Security.

I seem to have stopped received DIYnot emails when a post is updated.

I had a look at Antispam, and the DIYnot is in my address book and not blocked, I wonder if there is another setting that might have stopped them working?

On my old machine I used Systemworks and used Files and Settings transfer into the new one.

belay that...

I think it must have been my fault, the email account was not set up right.