[Mailman-Developers] before next release: disable backscatter in default installation

[Jo Rhett]

On Tue, March 25, 2008 2:33 am, Julian Mehnle wrote:
> You can however safely send a DSN if an SPF[1] check for the incoming
> message passes.

That's not "safe" but perhaps "safer".  But a lot of sites can't use SPF
so they either don't use it, or use soft-fail.  I would only trust SPF
results from explicit matches and PASS.

-- 
Jo Rhett
Network/Software Engineer
Net Consonance