Hi !!
If you use SPF checks you should reject any check that gives a
'fail' result as the domain onwer is telling you to do so (We
do that without any major problem). We publish spf records
with ~all but we use -all to forbid the use of certain email
addresses that should never send email, we also publish -all
for domains that do not send email at all or for which the
onwer wants direct communication (no forwarders). In any case,
anybody publishing -all is telling you exactly this: only accept
emails from the listed servers. BTW, SES could allow you to
better control joe-jobs, altought everyday we find more mailers
not using a null-envelope sender for bounces, specially for
virus warnings and other notifications.
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Best regards ...
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David Saez Padros http://www.ols.es
On-Line Services 2000 S.L. e-mail david@???
Pintor Vayreda 1 telf +34 902 50 29 75
08184 Palau-Solita i Plegamans movil +34 670 35 27 53
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