Re: [exim] SSL SMTP

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Author: Johannes Berg
Date:  
To: Chris Edwards
CC: Exim-Users \(E-mail\)
Subject: Re: [exim] SSL SMTP
On Do, 2004-12-02 at 22:51 +0000, Chris Edwards wrote:
> Would it be theoretically feasible to engineer this and somehow autosense
> whether the client is doing tls-on-connect, and if not, provide a regular
> SMTP session where ACLs force STARTTLS ?


Not within exim. The TLS layer would have to recognise that the client
is sending a HELO or EHLO string, and forward that to the upper layer.
OpenSSL does something similar with HTTP by then signaling an error
condition that basically says: someone tried unencrypted HTTP.

johannes