Autor: Johannes Berg Data: A: Chris Edwards CC: Exim-Users \(E-mail\) Assumpte: 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.