sendmail: how can I restrict access to clients that only have a valid certificate?

Posted by lxg on Server Fault See other posts from Server Fault or by lxg
Published on 2010-02-02T12:59:08Z Indexed on 2010/04/08 2:03 UTC
Read the original article Hit count: 429

Filed under:

sendmail

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slackware

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linux

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certificate

I want to reject all connections that don't present a valid SSL/TLS certificate. First of all is the access db file the correct one to be changing?

I have already tried using the basic rule given in the documentation

CertIssuer:/C=US/ST=California/O=endmail.org/OU=private/CN= Darth+20Mail+20+28Cert+29/[email protected] RELAY

This will obviously need a rule afterward to filter and reject all that don't present the cert? Does anyone have any pointers as to what syntax I should use? wildcards?

lxg

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