On Tue, 2 Feb 2016 09:21:39 +0100 richard lucassen <mailinglists at lucassen.org> wrote: > Downgrade does not change anything. Must be something else. On my courier-IMAP server I had to generate a new DH key: openssl dhparam -out dhparam.pem 2048 R. -- richard lucassen http://contact.xaq.nl/