Commit 85e1237c543e4e4119ef51c34870c8dc79d14dc2 changed from socket->setProtocol(QSsl::TlsV1); to socket->setProtocol(QSsl::TlsV1_0); Qt5 also provides socket->setProtocol(QSsl::TlsV1_0OrLater). This would set tls1.0 as a minimun instead as tls1.0 as only option. Reproducible: Always
Git commit c644c58bb57406f8b20ab0fc1396d92b03c40f32 by Montel Laurent. Committed on 11/09/2016 at 05:25. Pushed by mlaurent into branch 'master'. Fix Bug 368538 - mailtransport uses only tls1.0 FIXED-IN: 5.4.0 M +1 -1 src/socket.cpp http://commits.kde.org/kmailtransport/c644c58bb57406f8b20ab0fc1396d92b03c40f32