Dovecot 2.2.27 & windows 10 outlook (no auth attempts in 0 secs) error.

[Mart Pirita]

Hello.


Few days ago upgraded from v2.2.26.0 >v2.2.27 and now windows 10, with
any outlook version (2007,2010,2013,2016) doesn't connect IMAP SSL:


Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: elliptic curve
secp384r1 will be used for ECDH and ECDHE key exchanges
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: elliptic curve
secp384r1 will be used for ECDH and ECDHE key exchanges
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: where=0x10,
ret=1: before/accept initialization [x.x.x.x]
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: where=0x2001,
ret=1: before/accept initialization [x.x.x.x]
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: where=0x2001,
ret=1: SSLv3 read client hello A [x.x.x.x]
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: where=0x2001,
ret=1: SSLv3 write server hello A [x.x.x.x]
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: where=0x2001,
ret=1: SSLv3 write certificate A [x.x.x.x]
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: where=0x2001,
ret=1: SSLv3 write key exchange A [x.x.x.x]
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: where=0x2001,
ret=1: SSLv3 write server done A [x.x.x.x]
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: where=0x2001,
ret=1: SSLv3 flush data [x.x.x.x]
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: where=0x2002,
ret=-1: SSLv3 read client certificate A [x.x.x.x]
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL: where=0x2002,
ret=-1: SSLv3 read client certificate A [x.x.x.x]
Dec 12 12:29:35 server dovecot: imap-login: Warning: SSL failed:
where=0x2002: SSLv3 read client certificate A [x.x.x.x]
Dec 12 12:29:35 server dovecot: imap-login: Debug: SSL error: Disconnected
Dec 12 12:29:35 server dovecot: imap-login: Disconnected (no auth
attempts in 0 secs): x.x.x.x, TLS handshaking: Disconnected

Is this a bug or some new feature? How to fix it?

-- 
Mart