Re: SPF
- From: "Rajko M." <kakomo123@xxxxxxxxxxxx>
- Date: Tue, 05 Aug 2008 10:19:43 -0500
David Bolt wrote:
Thanks David.
From my understanding, it's supposed to help prevent forgeries[0] but,
since a lot of places don't check the SPF records, few places specify
that you should hard-fail mail from unauthorized addresses with most
saying that mail can come from anywhere besides the listed addresses,
it's not really that much of a large help.
Yes.
It will blacklist only servers that domain owner tells to blacklist, but not
those that suppose to send messages. It makes spammer life a bit more
complicated, but as it is not widely adopted there is plenty of IPs that
can be misused.
I was focused on a table with default actions, that I find too loose to
prevent much, but some admins use harder rules which prevents legitimate
emails to go trough. See:
https://bugzilla.novell.com/show_bug.cgi?id=414666
[0] When it was first devised, it was originally claimed that it would
help to prevent spam. It now seems to have been toned down to just
helping to prevent forgeries, which it could do.
That much about how thorough understanding of mail protocol(s) and practices
was by those that initiated idea.
--
Regards, Rajko
http://en.opensuse.org/Portal needs helpful hands.
.
- References:
- Re: SPF Re: fetchmail not fetching spam with invalid email address
- From: David Bolt
- Re: SPF Re: fetchmail not fetching spam with invalid email address
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