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  2. Fix security certificate error messages in Internet Explorer

    help.aol.com/articles/message-the-security...

    Seeing security certificate errors when visiting certain websites? Learn how to remedy this issue in Internet Explorer. ... If a website's security certificate ...

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2]A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD.

  4. Fix problems sending AOL Mail

    help.aol.com/articles/aol-mail-troubleshooting

    If you're having problems sending mail, there are a few troubleshooting steps you can take to fix the problem. Restart your computer:. If you haven't shut down your computer in a while, we recommend that you begin troubleshooting by restarting your computer.

  5. Certificate revocation list - Wikipedia

    en.wikipedia.org/wiki/Certificate_revocation_list

    Expiration dates are not a substitute for a CRL. While all expired certificates are considered invalid, not all unexpired certificates should be valid. CRLs or other certificate validation techniques are a necessary part of any properly operated PKI, as mistakes in certificate vetting and key management are expected to occur in real world ...

  6. Public key certificate - Wikipedia

    en.wikipedia.org/wiki/Public_key_certificate

    The certificate provider signs the request, thus producing a public certificate. During web browsing, this public certificate is served to any web browser that connects to the web site and proves to the web browser that the provider believes it has issued a certificate to the owner of the web site.

  7. Ways to securely access AOL Mail

    help.aol.com/articles/allow-apps-that-use-less...

    Remove your AOL account and set it up again in the Thunderbird email client. For more info on how to connect accounts, go to Thunderbird's website. Go to Tools | Account Settings. Select your account in the list. Go to Account Actions at the bottom left. Click Remove Accounts. Click Add Accounts and type in the email address and password.

  8. Certificate Transparency - Wikipedia

    en.wikipedia.org/wiki/Certificate_Transparency

    Certificate Transparency (CT) is an Internet security standard for monitoring and auditing the issuance of digital certificates. [1] When an internet user interacts with a website, a trusted third party is needed for assurance that the website is legitimate and that the website's encryption key is valid.

  9. AOL Mail

    mail.aol.com

    AOL Mail is free and helps keep you safe. From security to personalization, AOL Mail helps manage your digital life Start for free