--- In thunderbird-spf@yahoogroups.com, Joshua Tauberer <jt@...> wrote:
>
> Okay, great, thanks for the info. I think I'm going to include that and
> dnswl.org in the next update. For dnswl.org, when they report high or
> medium trust level (and when SPF also passes), the extension will say
> "High Trust" or "Medium Trust". I'm not sure what message to use for
> Sender Score Certified. "Medium Trust"?

I personally vote against this. I use this extension simply because
all it does is SPF checking. If you want to turn it into a full-blown
anti-spam solution, go ahead and add DNSWLs, and you might as well
throw in DNSBLs too.

These DNSWLs are no different from all the DNSBLs out there. You're
still relying on a third party to determine what email is good or bad.
SPF simply tells you if the sender of an email matches its domain,
while these DNS_Ls separate email (based on the source) into good and
bad, based on their own criteria. These seem like good, professional
companies making qualified decisions, but you're still trusting them
that much. Maybe they'll turn into the vindictive jerks that are
common with DNSBLs. Maybe they'll turn into the blackmailing bully,
holding large sites' emails hostage unless they pay the fee.

If you do add this in, please also add an option to disable the feature.