On 2003-05-05 19:14:32 -0700, Dave Crocker wrote: > BS> What it helps with is whether some specific piece of email is highly > BS> likely to be from the organization it claims to be from, in a > BS> relatively lightweight way. > > If you find an RMX record, yes you can make that positive > interpretation. > > The problem is that you have zero information if you do NOT find an RMX > record. Some proposals for RMX records allow to distinguish between "this domain doesn't use RMX records" and "this domain does use RMX records but this address is not an authorized RMX for this domain". So you have a positive, a negative, and a don't know case. hp -- _ | Peter J. Holzer | Latein ist das humanoide Äquivalent |_|_) | Sysadmin WSR | zu Fortran. | | | hjp@hjp.at | __/ | http://www.hjp.at/ | -- Alexander Bartolich in at.linux
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