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wisip
2018 Jan 04
1
TLS problem after upgrading from v2.2 to v2.3
Hi *,
The change in default SSL settings between 2.2 and 2.3 cut off a few
clients; Microsoft-hosted Exchange (?) being one of them:
Jan 4 11:02:56 kremail dovecot: pop3-login: Disconnected (no auth
attempts in 0 secs): user=<>, rip=40.101.4.hisip, lip=myip, TLS
handshaking: SSL_accept() failed: error:1408A0C1:SSL
routines:SSL3_GET_CLIENT_HELLO:no shared cipher, session=<8SGob/BhTdcoZQS1>
Explicitly setting ssl_cipher_list to the old defaults helped:
ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL
Does someone have an idea what to re...