@vottak the presently being served certificate is https://decoder.link/sslchecker/mail.domain.com.ua/443
Common Name: dotcom.com.ua
SANs:
DNS:dotcom.com.ua
Total number of SANs: 1
Signature Algorithm: sha256WithRSAEncryption
Key Type: RSA
Key size: 2048 bits
Serial Number: 362fdf13d2075621042b7a3754e368032a6
Not Before: Mar 06, 2024 18:59:21 GMT
Which is this certificate crt.sh | 12296009055