![]() You may want to disable protocols older than TLS 1.2 (by default, TLS 1.0, 1.1, and 1.2 are enabled). It shows the Web site How's My SSL? (as unfortunately the Qualys test cannot be embedded in an HTML iframe). To verify the new configuration, the included omcs.mbs file can be imported into Opera Mail as a "generic mbox file".The "recommended" cipher suites are those that the Qualys SSL server test marks as providing forward secrecy and not being "weak" as of February 2020. Cipher suites are listed in the approximate order of their security from best to worst regarding forward secrecy, algorithm security, and key size. Run the program (with Opera Mail not running) and disable the cipher suites you want.You can get the location of this file by choosing "About Opera Mail" from the Help menu and looking at "Opera directory". Before using the program, make a backup of the opssl6.dat file.(In the future, there might be a version for OS X as a temporary solution, you can try copying the opssl6.dat file from an installation of Opera 12.16 that has had its security tightened appropriately and then doing step 4 below.) Download (requires the Visual C++ 2008 redistributable install it if you can't run the program).This is a utility for the Windows version of the standalone Opera Mail program (version, released in 2016) that lets you disable cipher suites that are no longer secure. Opera Mail cipher selector - Matej Horvat Opera Mail cipher selector
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