benoit:
> Hello,
>
> I have a problem with my postfix sever, I can't connect with TLS, I have
> this error:
>
> Sep 21 10:40:32 jolly postfix/smtpd[23341]: warning: TLS library
> problem: error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert
> certificate unknown:../ssl/record/rec_layer_s3.c:1536:SSL alert number 46:
>
> Connection works fine without TLS.
>
> I use a let's encrypt certificate. My server is a debian Buster
SSL alert number 46 means the client tried to verify the certificate.
Don't do that, or configure Postfix to provide the more of the
certificate trust chain (the 'parent' certificates).
Wietse
