https://bugs.kde.org/show_bug.cgi?id=394770
Bug ID: 394770 Summary: STARTTLS is restricted to TLS 1.0 Product: ksmtp Version: unspecified Platform: Other OS: Linux Status: UNCONFIRMED Severity: normal Priority: NOR Component: general Assignee: kdepim-bugs@kde.org Reporter: joerg....@thalheim.io Target Milestone: --- KSmtp makes the assumption that TLSv1 is equal to STARTTLS https://github.com/KDE/ksmtp/commit/e83911f9d1963b5e7181932960f999f331b4a5f9#commitcomment-29146023 This is incorrect as STARTTLS is independent from the protocol version used for cryptography. In turn it is not possible to use newer TLS version such as v1.1 or v1.2. Also it is not possible to use TLS 1.0 on ports without STARTTLS. A workaround at the moment is to enable smtps (smtp without STARTTLS) on a different port to allow modern TLS version. When fixing this issue, please also consider renaming SSL to SSL/TLS and the current TLS option to STARTTLS in the encryption selection of Kmail. This creates less confusion and follows other email clients such as Thunderbird. This bug is related to the same limitation in KImap tracked in: https://bugs.kde.org/show_bug.cgi?id=394769 -- You are receiving this mail because: You are the assignee for the bug.