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Force TLS1.2 in Windows Mail and/or Microsoft Office Outlook 2003/2007 in Windows Vista. Any way to achieve this?


Sergiaws

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I installed the TLS1.2 update in Windows Vista and even deactivated older tls versions in internet options, but Microsoft Outlook still tell me to upgrade cause TLS1.0 and TLS1.1 are not supported. Any way to achieve that? I have another question, if I reinstall the system some day, it is possible to keep IE7 instead of upgrading to IE9 and still get the TLS 1.2 stuff?

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  • 2 weeks later...

did you add the tls 1.2 registry keys and verified they are visible and checked in internet options after a reboot?

https://www.windowspage.de/tipps/010303.html

https://www.retrospace.net/infoseiten/readm.php?id=98

 

this should automatically enable tls 1.2 in all apps using winhttp

keeping ie7 is impossible, 8 on xp and 9 on vista is required

 

Edited by freakedenough
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@freakedenough You didn’t actually say if you are able to use Windows Mail and/or Outlook 2003/2007 in the year 2023?  If you can, then perhaps Sergiaws was not aware that Vista x64 required more registry changes than Vista x86 for TLS 1.2 (however he did mention “internet options” in first sentence). Possibly relevant: Outlook 2007 did not use Internet Explorer’s rendering engine:

https://www.wired.com/2007/01/outlook-2007-adopts-ms-word-rendering-engine/

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I made the tweak as I told, I even disabled older TLS versions. I have a microsoft outlook account that previously worked, but it now refuses to send/receibe emails when I use Windows Mail. So, for sending/receibing emails my options are:

1. Windows Mail (builting in Windows Vista).

2. Outlook 2003 (it seems to be a bit laggy and don't work sometimes.

3. Outlook 2007 (at least it don't have ribbon UI).

I don't want to use outlook 2010 or newer due to the Ribbon UI. If none of the apps I mentioned earlier can't work properly in Vista, I might start to use thunderbird or a page with a bassic html4 client (unfortunately without notifications) cause the normal web version of outlook also sucks.

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