Neil wrote:
>
> But still; how can I know that SPF and DKIM checks are working?
>



copy _this_ message (the one you are reading now) to a file:
message.eml, then (assuming a Bourne shell, not a C shell), run

# spamassassin -D -t < message.eml 2>&1 | tee sa.out

and check sa.out for spf and dkim.