On Fri, 10 Dec 2004 20:30:46 +0100, David <david(_at_)ols(_dot_)es> wrote:
so, i agree, hello policy must be separated from mail from: policy.
Then , what about having something like this:
ols.es. IN TXT "v=spf1 mx ~all" -> for mail from:
ols.es. In TXT "v=hello -all" -> to prevent hello forgery
a.lon.olsns.net IN TXT "v=hello a -all" -> for my hello's
a.mad.olsns.net IN TXT "v=hello a -all" -> for my hello's
and always make hello checks agains hello records (not only in the
case of the null envelope sender)
It would be helo or ehlo I believe. My MTA is friendly but not that friendly.
Mike