" Whatever the default, the logs you posted showed TLS 1.3"
I have noticed that some gmail comes through as TLS 1.2 and some as TLS 1.3; I
am guessing that not all of Google's SMTP gateways are TLS 1.3 yet...
On 6/22/19, 2:13 PM, "owner-postfix-us...@postfix.org on behalf of Viktor
Dukhovni
> On Jun 22, 2019, at 2:20 PM, Security Admin (NetSec)
> wrote:
>
> One of the other posters was correct; it was a certificate issue. Reissued
> my cert on my postfix SMTP mail gateways.
As expected, the keyUsage you had was only appropriate for a CA,
not a TLS server.
> All seems to be w
Security Admin (NetSec) skrev den 2019-06-22 20:20:
I am using Ubuntu Linux and the latest postfix which is 3.3.0
unfortunately
hope google stop failback from tls to ssl :(
good you solved your part of the problem
Apologies for multiple emails to this list for the same problem.
Some internet searches got me to the right solution.
One of the other posters was correct; it was a certificate issue. Reissued my
cert on my postfix SMTP mail gateways.
All seems to be working now. Gmail defaults to TLS 1.2
I
