On 24/08/2017 08:26, Peter Chubb wrote: > After upgrading dovecot, MacOSX El Capitan and IOS versions below 8 can > no longer connect. The error in the log is: > SSL_accept() failed: error:1417D18C:SSL > routines:tls_process_client_hello:version too low, session=...
This is due to a bug introduced in OpenSSL 1.1.0f-4, which you presumably updated at the same time. As I am not a Debian Developer I will leave it to someone else to reassign this bug. > How can I reenable TLSv1 ? The obvious > ssl_protocols = TLSv1, TLSv1.1, TLSv1.2, !SSLv2, !SSLv4 > doesn't work for me. I would assume that downgrading openssl and libssl1.1 to version 1.1.0f-3 (available from snapshot.debian.org) should work... Roger
