On 30 Jul 2013, at 08:56, Cyborg <[email protected]> wrote:
> as i just read about PFS, i was wondering how exim is handling the key 
> exchange.
> 
> the article suggested to use these ciphers in this order:
> 
> TLS_ECDHE_RSA_WITH_RC4_128_SHA
> TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
> TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
> TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA

Look for tls_require_ciphers in the docs.

Also read up on openssl_options, and

http://www.exim.org/exim-html-current/doc/html/spec_html/ch-encrypted_smtp_connections_using_tlsssl.html#SECTreqciphssl
http://www.exim.org/exim-html-current/doc/html/spec_html/ch-encrypted_smtp_connections_using_tlsssl.html#SECTreqciphgnu

Graeme
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