I don't know enough to ask if this is relevant or not:
If the exploded mailing list was in the *bcc:* distribution, vs the
*cc:* or *to:* lists,
* would that somehow bypass the fencing logic preventing proper use of
the service, or
* is the "sigs-l3go [ at ] linux-ottawa [ dot ] org" address itself being
"discriminated" against because it is a ".org", or
* is the hosting service "linux-ottawa.org" being discriminated
against because that domain specifically has been flagged as offensive?
... or maybe I completely misunderstood the gist of this conversation! :-(