Please add SPF support to ASK.
Users/domains who use A-S-K to prevent spamay may want
to add multi-step antispam policy
Sample checks -- in order:
1) check white/black-lists for send domain, blah, etc
2) check for sender SPF domain entry. If present
and sender allowed accept msg and forward to MTA for
immediate routing/delivery (and bypass
challenge/response mech). Otherwise, continue to
challeng/response mechanism in A-S-K.
3) run through challenge-response mech from A-S-K
OR -- maybe this is just a config issue with MTA??
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