Windows 7 IMAP/SMTP over SSL/TLS "A secure connection to the server cannot be established"

  • Thread starter Thread starter JohnGkouziotis
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JohnGkouziotis

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Hello community.


I am currently working on a hosting company and we are trying to set up email accounts for our customers.


The majority of them are running windows 7 on their machines with Office 2010 or earlier. Since these Office versions are not supported any more, i install Outlook 2016 on them and then i create a new Outlook profile just to be sure. The thing is, that when i add the email account of the client i get a "A secure connection to the server cannot be established" error WHEN i use SSL or TLS. As far as i am concerned, the email server is the default one, just with minimun SSL Protocol=TLS_1.2. That happens ONLY on windows 7 machines running whatever version of Office.


On windows 8.1 and 10 machines the email is added with no errors. Also i feel worth mentioning that on windows 7 machines and thunderbird the account is added as well. The only issue is on Windows 7 and Office whatever version.


Anyone could help me?


Thanks in advance.

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