Hi @Sergio Suárez ,
Since our forum mainly provides technical support in English, in order to avoid misunderstanding, it is recommended that you post in English. Thank you for your understanding.
According to machine translation, your question is as follows: I have expired 3 certifications and I did not receive notices for renewal, please enable again exceptionally.
Most trusted Certificate Providers inform customers by email before certificates expire , but may not provide a certificate expiration status update when the certificate is issued by an internal Microsoft Windows CA.
Please follow this article to renew your Exchange Server certificate: Renew an Exchange Server certificate.
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