Securence uses DigiCert certificates, you will find additional details about their certificates here: https://www.digicert.com/digicert-root-certificates.htm
- Root CA: DigiCert Global Root CA
- Valid until: 10/Nov/2031
- Serial #: 08:3B:E0:56:90:42:46:B1:A1:75:6A:C9:59:91:C7:4A
- Thumbprint: A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436
- Certificate key size: RSA 2048
- Intermediate CA:
- Valid until: 08/Mar/2023
- Serial #: 01:FD:A3:EB:6E:CA:75:C8:88:43:8B:72:4B:CF:BC:91
- Thumbprint: 1FB86B1168EC743154062E8C9CC5B171A4B7CCB4
- Cert key size: RSA 2048
- Securence Cert: *.securence.com
- Serial Number: 08:18:f7:4c:e4:de:12:ea:e9:de:fb:ea:20:3a:02:73
- Signature Algorithm: sha256WithRSAEncryption
- Cert key size: RSA 2048
See also: SMTP over TLS supported cipher suites