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Atlas Secure Mail Intermediate Certificates

Aug 28, 2025

Atlas Secure Mail Intermediate Certificates

Intermediate Certificates help complete a "Chain of Trust" from your S/MIME Certificate to GlobalSign's Root Certificate.

GlobalSign ATLAS R45 SMIME CA 2025

GlobalSign Atlas R6 SMIME CA 2023
SHA384 • RSA • 4096

Valid until: 20 August 2032
Serial #: 00 84 14 c8 69 3d 08 28 51 54 5e 68 07 5f 1f 15 3e
Thumbprint: dd 55 c6 f3 00 bf 2e 9e ff dc c0 84 62 06 e9 b6 08 a3 b3 c5

Download Certificate (Binary/DER Encoded) View in Base64

Secure Email and Secure Email Enterprise as of August 28, 2023

GlobalSign Atlas R6 SMIME CA 2023

GlobalSign Atlas R6 SMIME CA 2023
SHA384 • RSA • 4096

Valid until: 19 April 2032
Serial #: 7E:87:C3:01:52:2A:D2:26:46:E4:E9:3E:99:90:93:D9
Thumbprint: 9B:E3:01:E5:CB:FE:FD:2C:3D:43:49:58:08:F6:62:37:40:CA:3D:F9

Download Certificate (Binary/DER Encoded) View in Base64

Secure Email and Secure Email Enterprise from June 2021 to August 2023

GlobalSign Atlas R3 SMIME CA 2020

GlobalSign Atlas R3 SMIME CA 2020
SHA256 • RSA • 2048

Valid until: 18 March 2029
Serial #: 78:03:18:60:76:FC:D6:78:14:55:1D:16:C8:C4:F3:AB
Thumbprint: D8:FF:7D:1D:55:90:CE:D8:7E:71:45:B0:BB:AC:E2:0B:A6:C9:A9:2F

Download Certificate (Binary/DER Encoded) View in Base64

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