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From: Kurt Seifried (listuserseifried.org)
Date: Wed Mar 21 2001 - 16:19:09 CST

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    > Hey list,
    >
    > On my box I have sendmail running. In order to use SMTP over SSL I run it
    > with stunnel in inetd:
    >
    > smpts stream tcp nowait root /usr/local/sbin/stunnel stunnel -D
    > 3 -p /usr/local/ssl/certs/stunnel.pem -r smtp
    >
    > Further I configured sendmail to use SMTP AUTH. Everything works perfect.
    >
    > But: smpts is on port 465. I configured my clients such that they use that
    > port. So far so good. But now port 25 can still be used to send email. I
    > could block it at the firewall but then I am not able to receive email any
    > more, because other mailservers are talking with me on that port. (right?)
    >
    > Is there a solution that I can use SMTP over SSL and SMTP AUTH? Clients
    > should not be able to connect without SSL or SMPT AUTH!

    firewall it on the local machine, Linux has firewalling capabilities (ipchains
    in 2.2, iptables in 2.4).

    > Thanks
    >
    > Raffy

    -Kurt

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