301321Re: Individual smtpd_tls_ask_ccert?
- Jul 29, 2014I think it would help if someone can explain what an SMTP client
certificate actually proves, without all the wishful thinking that
every nugget of "security" is a worthwhile improvement.
What does the certificate really prove about the SMTP client?
What does the certificate prove about the connection from that SMTP
client, and how useful is that really, bearing in mind that this
SMTP connection is very likely only the last one in a sequence of
What does it prove about the message envelope and message content
that was sent over that SMTP connection, bearing in mind that the
message very likely originated from some other system?
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