cloudmark.com Domain Information

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1.1.1.1 Resolver query results

Subject	Validity Period	Issuer	CT Log
cloudmark.comProofpoint, Inc.	1 yearNot Before: Nov 5, 2025, 00:00:00 Not After: Nov 5, 2026, 23:59:59	Sectigo Public Server Authentication CA OV R36Sectigo Limited	Elephant2026h2
Subject Common Name (CN) cloudmark.com Organization (O) Proofpoint, Inc. Country / Territory (C) United States Validity Period Not Before Nov 5, 2025, 00:00:00 Not After Nov 5, 2026, 23:59:59 Issuer Common Name (CN) Sectigo Public Server Authentication CA OV R36 Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Elephant2026h2
cloudmark.comProofpoint, Inc.	1 yearNot Before: Nov 5, 2025, 00:00:00 Not After: Nov 5, 2026, 23:59:59	Sectigo Public Server Authentication CA OV R36Sectigo Limited	Elephant2026h2
Subject Common Name (CN) cloudmark.com Organization (O) Proofpoint, Inc. Country / Territory (C) United States Validity Period Not Before Nov 5, 2025, 00:00:00 Not After Nov 5, 2026, 23:59:59 Issuer Common Name (CN) Sectigo Public Server Authentication CA OV R36 Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Elephant2026h2
www.cloudmark.comProofpoint, Inc.	1 yearNot Before: Jul 31, 2025, 00:00:00 Not After: Jul 31, 2026, 23:59:59	Sectigo Public Server Authentication CA OV R36Sectigo Limited	Oak2026h2
Subject Common Name (CN) www.cloudmark.com Organization (O) Proofpoint, Inc. Country / Territory (C) United States Validity Period Not Before Jul 31, 2025, 00:00:00 Not After Jul 31, 2026, 23:59:59 Issuer Common Name (CN) Sectigo Public Server Authentication CA OV R36 Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Oak2026h2
www.cloudmark.comProofpoint, Inc.	1 yearNot Before: Aug 1, 2025, 00:00:00 Not After: Jul 31, 2026, 23:59:59	Sectigo Public Server Authentication CA OV R36Sectigo Limited	Wyvern2026h2
Subject Common Name (CN) www.cloudmark.com Organization (O) Proofpoint, Inc. Country / Territory (C) United States Validity Period Not Before Aug 1, 2025, 00:00:00 Not After Jul 31, 2026, 23:59:59 Issuer Common Name (CN) Sectigo Public Server Authentication CA OV R36 Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Wyvern2026h2
cloudmark.comProofpoint, Inc.	1 yearNot Before: Dec 17, 2024, 00:00:00 Not After: Dec 17, 2025, 23:59:59	Sectigo RSA Organization Validation Secure Server CASectigo Limited	Sphinx2025h2
Subject Common Name (CN) cloudmark.com Organization (O) Proofpoint, Inc. Country / Territory (C) United States Validity Period Not Before Dec 17, 2024, 00:00:00 Not After Dec 17, 2025, 23:59:59 Issuer Common Name (CN) Sectigo RSA Organization Validation Secure Server CA Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Sphinx2025h2
cloudmark.comProofpoint, Inc.	1 yearNot Before: Mar 6, 2024, 00:00:00 Not After: Feb 19, 2025, 23:59:59	Sectigo RSA Organization Validation Secure Server CASectigo Limited	Nessie2025
Subject Common Name (CN) cloudmark.com Organization (O) Proofpoint, Inc. Country / Territory (C) United States Validity Period Not Before Mar 6, 2024, 00:00:00 Not After Feb 19, 2025, 23:59:59 Issuer Common Name (CN) Sectigo RSA Organization Validation Secure Server CA Organization (O) Sectigo Limited Country / Territory (C) United Kingdom CT Log Nessie2025

Subject

Validity Period

Issuer

CT Log

cloudmark.comProofpoint, Inc.

1 yearNot Before: Nov 5, 2025, 00:00:00
Not After: Nov 5, 2026, 23:59:59

Sectigo Public Server Authentication CA OV R36Sectigo Limited

Elephant2026h2

Subject

Common Name (CN): cloudmark.com
Organization (O): Proofpoint, Inc.
Country / Territory (C): United States

Validity Period

Not Before: Nov 5, 2025, 00:00:00
Not After: Nov 5, 2026, 23:59:59

Issuer

Common Name (CN): Sectigo Public Server Authentication CA OV R36
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Elephant2026h2

cloudmark.comProofpoint, Inc.

1 yearNot Before: Nov 5, 2025, 00:00:00
Not After: Nov 5, 2026, 23:59:59

Sectigo Public Server Authentication CA OV R36Sectigo Limited

Elephant2026h2

Subject

Common Name (CN): cloudmark.com
Organization (O): Proofpoint, Inc.
Country / Territory (C): United States

Validity Period

Not Before: Nov 5, 2025, 00:00:00
Not After: Nov 5, 2026, 23:59:59

Issuer

Common Name (CN): Sectigo Public Server Authentication CA OV R36
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Elephant2026h2

www.cloudmark.comProofpoint, Inc.

1 yearNot Before: Jul 31, 2025, 00:00:00
Not After: Jul 31, 2026, 23:59:59

Sectigo Public Server Authentication CA OV R36Sectigo Limited

Oak2026h2

Subject

Common Name (CN): www.cloudmark.com
Organization (O): Proofpoint, Inc.
Country / Territory (C): United States

Validity Period

Not Before: Jul 31, 2025, 00:00:00
Not After: Jul 31, 2026, 23:59:59

Issuer

Common Name (CN): Sectigo Public Server Authentication CA OV R36
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Oak2026h2

www.cloudmark.comProofpoint, Inc.

1 yearNot Before: Aug 1, 2025, 00:00:00
Not After: Jul 31, 2026, 23:59:59

Sectigo Public Server Authentication CA OV R36Sectigo Limited

Wyvern2026h2

Subject

Common Name (CN): www.cloudmark.com
Organization (O): Proofpoint, Inc.
Country / Territory (C): United States

Validity Period

Not Before: Aug 1, 2025, 00:00:00
Not After: Jul 31, 2026, 23:59:59

Issuer

Common Name (CN): Sectigo Public Server Authentication CA OV R36
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Wyvern2026h2

cloudmark.comProofpoint, Inc.

1 yearNot Before: Dec 17, 2024, 00:00:00
Not After: Dec 17, 2025, 23:59:59

Sectigo RSA Organization Validation Secure Server CASectigo Limited

Sphinx2025h2

Subject

Common Name (CN): cloudmark.com
Organization (O): Proofpoint, Inc.
Country / Territory (C): United States

Validity Period

Not Before: Dec 17, 2024, 00:00:00
Not After: Dec 17, 2025, 23:59:59

Issuer

Common Name (CN): Sectigo RSA Organization Validation Secure Server CA
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Sphinx2025h2

cloudmark.comProofpoint, Inc.

1 yearNot Before: Mar 6, 2024, 00:00:00
Not After: Feb 19, 2025, 23:59:59

Sectigo RSA Organization Validation Secure Server CASectigo Limited

Nessie2025

Subject

Common Name (CN): cloudmark.com
Organization (O): Proofpoint, Inc.
Country / Territory (C): United States

Validity Period

Not Before: Mar 6, 2024, 00:00:00
Not After: Feb 19, 2025, 23:59:59

Issuer

Common Name (CN): Sectigo RSA Organization Validation Secure Server CA
Organization (O): Sectigo Limited
Country / Territory (C): United Kingdom

CT Log

Nessie2025

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