On Tue, Aug 1, 2017, at 04:41 PM, Viktor Dukhovni wrote:
> Just put the cipherlist in single quotes, otherwise "bash" history 
> substitution gets in the way:

Grrr. Ok.

> DO NOT confuse ciphers with protocol versions.
> No, these are protocol version exclusions, not cipher exclusions.

Yep. That's exactly what I was doing.
Clear now.
Thanks.

> The low-level cipherlist interface is an OpenSSL interface, and
> you ask OpenSSL not Postfix to interpret the configuration. 

Ok.

> It is unfortunate that you're forced to scale this particular
> learning curve.  The vast majority of users can stay blissfully
> unaware, and are better off for that.

I'm not going to complain about it.

I've got a decent start on the details of how to set TLS up in Postfix, how to 
tear it down, why I'd want to do either and how to check what I ended up with.

So I guess, a little wiser.

Thanks alot for the guidance!

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