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The Daily Insight

How do you test if SSL certificate is working?

Author

Sophia Hammond

Updated on March 07, 2026

How do you test if SSL certificate is working?

Chrome has made it simple for any site visitor to get certificate information with just a few clicks:

  1. Click the padlock icon in the address bar for the website.
  2. Click on Certificate (Valid) in the pop-up.
  3. Check the Valid from dates to validate the SSL certificate is current.

How do I find my SMTP server certificate?

Setting up to receive SSL SMTP on the server

  1. First you need to install a valid server SSL certificate on the server.
  2. You can obtain server SSL certificates from suppliers such as Comodo.
  3. Once you install the certificate it will be placed in your Personal Certificate store on Windows.

How do I check my mail certificate?

View your certificates In the left pane, click Email Security. Under Encrypted e-mail, click Settings. Under Certificates and Algorithms, click Choose. Click the certificate that you want, and then click View Certificate.

How do I know if SMTP server is enabled TLS?

Type “Internet Options” and select Internet Options from the list. Click on the Advanced tab and from there scroll down to the very bottom. Confirm that TLS 1.2 is checked. If it is not, please check the box adjacent to Use TLS 1.2 and then Apply.

How do I check SSL certificate in Chrome?

Navigate to chrome://settings and scroll down to ‘Advanced’.

  1. Under “Privacy and Security,” click “Manage Certificates.”
  2. On the popup that was launched, select “Trusted Root Certification Authorities’. The certificate will be displayed there.

How can I check my original certificate?

Inspect certificate design The real degrees and certificates from genuine educational institutions usually used special paper. If you found these printed on normal paper, there is a high chance that this is fake. Check closely for spelling mistakes. The language on the certificates should also be inspected thoroughly.

What is SSL SMTP?

SMTPS (Simple Mail Transfer Protocol Secure) is a method for securing the SMTP using transport layer security. Conceptually, it is similar to how HTTPS wraps HTTP inside TLS. This means that the client and server speak normal SMTP at the application layer, but the connection is secured by SSL or TLS.

How do I test SMTP is secure?

To test SMTP authentication via telnet:

  1. In a telnet client such as PuTTY, connect to the SMG appliance: telnet 587.
  2. Greet the mail server: EHLO mailserver.com.
  3. Tell SMG you want to authenticate with it: AUTH LOGIN.
  4. Paste the base64 encoded username.
  5. Paste the base64 encoded password for the username.

What is SMTP SSL?

How do you test if TLS 1.2 is enabled?

Click on: Start -> Control Panel -> Internet Options 2. Click on the Advanced tab 3. Scroll to the bottom and check the TLS version described in steps 3 and 4: 4. If Use SSL 2.0 is enabled, you must have TLS 1.2 enabled (checked) 5.

How do I know if TLS 1.2 is installed?

How to check if TLS 1.2 is enabled? If the registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client\DisabledByDefault is present, the value should be 0.

How do I test an SSL certificate in Windows?

To view certificates for the current user

  1. Select Run from the Start menu, and then enter certmgr. msc. The Certificate Manager tool for the current user appears.
  2. To view your certificates, under Certificates – Current User in the left pane, expand the directory for the type of certificate you want to view.