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On Feb 9, 2009, at 5:43 AM, Ian Eiloart wrote:
I'm not sure whether I do use it, but I think I should.
Most of our list users are in our own domain. That domain certainly
is less spoofable in the envelope, because we don't accept mail from
our domain unless it's been through our servers. We don't get spam
with sussex.ac.uk in the envelope sender domain.
With SPF records now widely published, including by several large
free email service providers, it's certainly within the power of
sites to validate the envelope sender address of much of their
inbound email. Losing this facility now would be a great shame.
I certainly don't see how having the option can do much harm.
It might be worth adding code to support BATV, if it isn't there
already.
MM3 does not yet support this.
So, I've landed a branch that gets rid of the MM3 equivalent to
USE_ENVELOPE_SENDER, but it will still be possible to consider the
MAIL FROM or Sender addresses in preference to From, if you wanted
to. I've implemented a site admin definable header lookup scheme so
you can define the order that headers are considered. By default it's
From:, MAIL FROM, Reply-To, Sender. This is a global order just like
U_E_S was.
Barry
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