Dave, I guess that was well deserved course of action, thought I didn't in fact block emails from TFSA. The problem could be related to something more technical though, where the spam filters blocked the domain / server / IP / network due to other abuse?

Ok, So there's no block for webmaster@theforumsa.co.za or theforumsa.co.za and your IP address isn't blocked on the firewall either.

would you be prepared to look into this from your side? i.e. do an email trace and see where it's being blocked?