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Enable TLS 1.1 and 1.2 in Windows 7 For Outlook To Work

Client that their email provider only connects using TLS 1.1 and 1.2. In Windows 10 its enabled by default and will work fine. For Windows 7 you have to run/check 3 steps. First make sure a Windows Update is installed. You must have SP1 installed and then download the update. Likely its already installed. Second you download and run a MS Easy Fix. Run then restart. Third you need to add 2 registry keys and restart.

Here is the website where I found this.

STEP 1 Download MS Update KB3140245

Install and reboot

STEP 2 Download MS Easy Fixit

Install and reboot

STEP 3 Add the following Registry items and reboot:

Check this registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\Schannel\Protocols

Under the Protocols key, add two new keys, if not already there: One called “TLS 1.1” and one called “TLS 1.2“. Inside both of these keys, add another key called “Client“. Now create a DWORD value in each Client key called “DisabledByDefault” whose value is 00000000.

Reboot and start Outlook.

If Outlook is still not able to send or can’t connect to port 465, change to port 25.

 

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