Let's Debug

Test result for autodiscover.ccas-cannes.fr using http-01

NoRecords
Fatal
No valid A or AAAA records could be ultimately resolved for autodiscover.ccas-cannes.fr. This means that Let's Encrypt would not be able to connect to your domain to perform HTTP validation, since it would not know where to connect to.
No A or AAAA records found.
PublicSuffix
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for autodiscover.ccas-cannes.fr is: fr
RateLimit
Debug
1 Certificates contributing to rate limits for this domain

Serial: 280511304297283150453953489691248672391354
NotBefore: 2023-05-02 07:27:18 +0000 UTC
Names: [mail.ccas-cannes.fr webmail.ccas-cannes.fr]

StatusIO
Debug
The current status.io status for Let's Encrypt
Operational

Submitted May 2 08:59:36 2023. Sat in queue for 6ms. Completed in 5s. Hide verbose information.