From: "Jean-Christophe Bandini"
<jean-christophe(_dot_)bandini(_at_)tumbleweed(_dot_)com>
...
But until the vast majority of the legitimate MTAs support
some verification (with or without digital signature), no one
can start to refuse unauthenticated inbound mails. ...
Which major MTAs don't have current versions that support SMTP-TLS
and SMTL-AUTH?
That might be considered a trick question, given the years that sendmail
and others have supported both. I'm not sure the original question
is not equally tricky.
Vernon Schryver vjs(_at_)rhyolite(_dot_)com
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