ISP Changed the mail server’s name: Another cause would be that the ISP has changed their mail server i.e its name and thus, you are being redirected from an old address to new ones, and that new address is not in their SSL certificate list.

Wrong Hostname: Many times, when users are configuring MS Outlook for a new account, they mistakenly type the hostname wrong and since when the hostname is wrong, there is no chance of any connection.Usually, it is caused by some of these issues: This error might pop up because the MS Outlook is not able to complete the connection process whether it was an email account or anything else. What causes the ‘The Server you are Connected to is Using a Security Certificate that Cannot be Verified’ Error Message? In this article, we will be going through the potential causes of the issue in detail and later on explain the possible fixes that you can implement to get the problem sorted out. The Server you are Connected to is using a Security Certificate that cannot be Verifiedĭue to this error, you might not be able to use some applications that require Microsoft Outlook or if you want to use your favorite email account through Microsoft Outlook. While using Microsoft Outlook 2010 or 2013, you might get this error if the mail server credentials that you entered are not correct. The error message ‘ The server you are connected to is using a security certificate that cannot be verified’ is often caused by network and connectivity problems likely due to hostname errors.

Charter email setup for outlook 2016