A. Schulze via Postfix-users:
> Am 25.09.23 um 22:11 schrieb Viktor Dukhovni via Postfix-users:
> > ...
> > So, unfortunate as it may seem, they just increase
> > opportunities for failure, without adding anything by way of security.
> > ...
> > Client certificates serve no purpose unless the server requests them and
> > knows what to do with them.
> 
> Hello Viktor,
> 
> OK, so far I can follow your arguments. But there is one thing that don't 
> match in that picture:
> It's how I see Google's outbound servers operate. ?)
> If I read my mail archive right, Google use client certificates at least 
> since 2015!
> 
> If operating SMTP clients with a client certificate is so dangerous and has 
> no value,
> why would google go that?

Client certs are useful when the server knows the client.
Everyone knows Google.

        Wietse
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