Very helpful..

On 13/10/2017 7:13 PM, Viktor Dukhovni wrote:
> On Fri, Oct 13, 2017 at 04:53:57AM +0000, Mal wrote:
> 
>> Wondering if Postfix logs any DANE operations? 
> 
> With DANE turned on, when you send email to a destination with
> DNSSEC and correctly configured TLSA records, the delivery is logged
> as "Verified" at smtp_tls_loglevel=1.  Barring any explicit tls
> policies for some special domains, anything that is logged as "Verified"
> used DANE to do reach that state.

Is loglevel=1 the only level it logs the verified entry on ?  Or is this
the minimum logging level.  ie, when verbose OR very verbose you will
also see it.

> While it is good to enable DANE TLSA records for your own MTA, so
> that *other* domains can send you email securely, this has nothing
> to do with how your own outbound mail is logged.  In the inbound
> direction the receiving MTA is passive, and does not know how or
> whether the sending MTA verified its certificate.
> 

Pretty good list to check against.

Mal

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