Take your email in example:

envelope from: users-return-120376-duca=staff.spin...@spamassassin.apache.org
body from:  maj...@gmail.com

SPF for gmail.com: v=spf1 redirect=_spf.google.com

You see that in case of mailing lists (and ESPs and possibly every other VERP case) a check on the body from would fail even if the original sender intended to send that email.

Daniele

On 03/05/19 17:24, user321 wrote:
But I have a feeling this would be extremely effective in dealing with
spoofed emails. They are often having borderline score around the blocking
point, so that kind of rule with relatively low score could be the last
straw on the camel's back, don't you agree?

cheers
user321



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