Certificate-Non-Valid-POP3/EN: Unterschied zwischen den Versionen
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Aktuelle Version vom 7. Mai 2020, 11:39 Uhr
Verification of certificate validity
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 is already valid | |
Result negativ | Certificate not yet valid | |
Description | The message means that your server certificate is not yet valid. Your server is displayed to visitors as insecure or untrustworthy. If a user calls your server with TLS, they may receive an error message. | |
Background | Server certificates provide more security on the Internet and serve to verify (authenticity) the identity of servers. A certificate is issued by official, trustworthy institutions. 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, e.g. of online shops. | |
Consequence | Most mail programs are configured so that by default they do not trust servers with an expired certificate. A server with an expired certificate thus generates a warning each time your server is called. | |
Solution/Tips | If Certificate not yet valid has been reported, use your old certificate as long as it is still valid. You can find out how to renew certificates here: [[Zertifikat-Abgelaufen/DE | Certificate expired]] (German only). |