On Saturday 14 April 2007 23:59, Adrian de los Santos wrote:
There is any implementation of spf that checks the from of the data
transaction ?
Not that is actually useful. There are valid reasons for Mail From
and From
to be different (look at the header of the e-mail for example).
How can i prevent forged froms on the data transaction ?
This is a difficult problem. SPF is only a part of the solution to
a bigger
problem.
What MTA are you using? We might be able to suggestion specifics.
Postfix.
With Postfix, in order to look at body data like From, you are either needing
a content filter/smtp proxy solution or a milter. You ought to talk to
Stuart about his reputation work he mentioned. It's done in a milter that
with minimal modifications should work with Postfix 2.3 or higher.
Scott K
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