Expired-Certificate-POP3S/EN
Certificate verification Duration
If the result is positive, there is no need for further action. If the result is negative, please read the following instructions.
Result positive | Certificate not expired |
Result negativ | Certificate expired |
Description | The message means that your server certificate has expired. Your website is displayed to visitors as insecure or untrustworthy. If a user visits your server via TLS, they may receive an error message, such as "Your certificate expired on (date)". |
Background | Server certificates provide more security on the Internet and serve to verify servers. A certificate is issued by official, trustworthy institutions and verifies the identity of the website. A certificate is not forgeable. In normal life, a certificate is comparable to an identity card or a notarial certification. Similar to a passport, certificates also have a certain validity period. Certificates thus ensure secure data exchange and form an important basis of trust for operators of e.g. online shops. |
Consequence | Most Internet browsers are configured so that by default you do not trust websites with an expired certificate. A server with an expired certificate thus generates a warning every time you connect. A warning message during the communication of your server thus has a negative effect on your company presentation on the Internet. |
Solution/Tips | If Certificate expired has been reported, renew the used certificate. You can find out how to renew certificates here: Certificate expired (German only). |