Re: postfix & TLS1.3 problems

2018-10-11 Thread Viktor Dukhovni
On Thu, Oct 11, 2018 at 05:54:59PM +0200, A. Schulze wrote: > Oct 11 17:43:35 mta postfix/smtpd[23847]: SSL_accept error from > client.example[192.0.2.25]:34152: -1 > > I traced some sessions and found the problematic client is announcing > the special cipher "TLS_FALLBACK_SCSV" > in a

Re: postfix & TLS1.3 problems

2018-10-11 Thread Viktor Dukhovni
On Thu, Oct 11, 2018 at 05:54:59PM +0200, A. Schulze wrote: > today I noticed a significant amount of TLS failures in my postfix log. > > Oct 11 17:43:35 mta postfix/smtpd[23847]: SSL_accept error from > client.example[192.0.2.25]:34152: -1 > > I traced some sessions and found the problematic

postfix & TLS1.3 problems

2018-10-11 Thread A. Schulze
Hello, today I noticed a significant amount of TLS failures in my postfix log. Oct 11 17:43:35 mta postfix/smtpd[23847]: SSL_accept error from client.example[192.0.2.25]:34152: -1 I traced some sessions and found the problematic client is announcing the special cipher