The closest OpenText Core Email Encryption alternatives are Z1 SecureMail Gateway, RPost RMail Email Encryption and TitanHQ EncryptTitan. Picking an OpenText Core Email Encryption alternative comes down to fit: Email Encryption coverage, your environment, your integrations and your budget. So each option below shows what it covers, how it deploys, its pricing model and the company behind it.
39 alternativesClosest matches: Z1 SecureMail Gateway, RPost RMail Email Encryption, TitanHQ EncryptTitanPage updated Nov 2026
The product
OpenText Core Email Encryption
by OpenText Cybersecurity
Cloud-based email encryption with automated DLP policies and delivery methods
OpenText Core Email Encryption is a commercial Email Encryption solution made by OpenText Cybersecurity. The closest matches by shared tags and NIST CSF 2.0 coverage are Z1 SecureMail Gateway, RPost RMail Email Encryption, TitanHQ EncryptTitan, Paubox Email Encryption, and LuxSci. All 39 alternatives on this page are ranked the same way.
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VisitThese 8 solutions overlap most with OpenText Core Email Encryption. Each row says what the product does and, when the overlap is big enough, which capabilities it shares.
Enterprise email encryption gateway supporting S/MIME, OpenPGP, and digital signing.
Key features: Digital email signing for authenticity and integrity, Automated certificate management via CertMagic®, Inter-organizational encrypted email exchange via GlobalCrypt®, Cloud deployment support for Azure/M365 and Google Cloud/Workspace, Centralized server-side encryption transparent to end users
View Z1 SecureMail GatewayZ1 SecureMail Gateway alternativesOpenText Core Email Encryption vs Z1 SecureMail Gateway
Enterprise email encryption gateway supporting S/MIME, OpenPGP, and digital signing.
Email encryption service with automated delivery and compliance tracking
Email encryption solution for secure information exchange via email
HIPAA-compliant email encryption for Google Workspace and Microsoft 365
Secure email platform with encryption, DLP, and policy automation
End-to-end email encryption for Gmail with granular access controls
AI-powered email encryption solution for compliance with HIPAA, FINRA, FERPA
End-to-end email encryption with DLP and access controls for Microsoft 365
Email encryption solution for securing sensitive data in email communications
Email encryption software using FIPS 140-2 compliant modules and RSA keys
Secure email gateway with automated DLP and zero-knowledge encryption
End-to-end email encryption for Gmail and Outlook with access controls
Automated email & SaaS encryption gateway with DLP rules & access controls
Encryption and data privacy solution for Google Workspace applications
Email encryption solution with access control, tracking, and revocation
Secure email solution for recruiters to encrypt and share sensitive candidate data
End-to-end email encryption solution with centralized policy management
Encrypted email platform with recipient verification, tracking, and revocation.
Outlook add-in for end-to-end email encryption with recipient auth & revoke.
Enterprise secure email gateway with AES-256 encryption & recipient auth.
AES-256 encrypted email add-on for M365 with auth & revocation.
Automated bulk secure email encryption & delivery for enterprise orgs.
E2EE solution for emails, files & SaaS apps with user-held encryption keys.
End-to-end Gmail encryption with user-controlled keys and trusted contacts.
E2E encryption for healthcare emails, files & apps protecting ePHI/PII.
E2EE solution for education covering emails, files, and apps.
S/MIME certificates for end-to-end email encryption and signing.
White-label branding layer for Echoworx's email encryption platform.
Cloud-based email encryption service using PKI, S/MIME & X.509 for orgs.
End-to-end encrypted email & file sharing with zero-trust architecture.
Enterprise admin module for encrypted email & file sharing with E-discovery controls.
E2E encrypted email for regulated industries handling CUI and ITAR data.
Email encryption solution for secure organizational communications.
Enterprise email security via encrypted stealth-links, bypassing SMTP vulnerabilities.
Email client plugin that encrypts file attachments into .cake format before sending.
Transparent email and attachment encryption for corporate messaging via Outlook
Common questions when weighing alternatives to OpenText Core Email Encryption.
The closest matches to OpenText Core Email Encryption by shared tags and NIST CSF 2.0 coverage are Z1 SecureMail Gateway, RPost RMail Email Encryption, TitanHQ EncryptTitan, Paubox Email Encryption, and LuxSci. All of them are Email Encryption products.
This page shows 39 alternatives to OpenText Core Email Encryption, all in the Email Encryption category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first.
OpenText Core Email Encryption is a commercial Email Encryption product. It needs a paid license or subscription. Only commercial alternatives are listed here. Free and open source products are under /free.
OpenText Core Email Encryption is a Email Encryption product in the Email & Messaging Security category. You can compare it with the 39 other Email Encryption products on this page.
Email encryption service with automated delivery and compliance tracking
Key features: 10 listed. See them on the RPost RMail Email Encryption page.
View RPost RMail Email EncryptionRPost RMail Email Encryption alternativesOpenText Core Email Encryption vs RPost RMail Email Encryption
Email encryption solution for secure information exchange via email
Key features: 10 listed. See them on the TitanHQ EncryptTitan page.
View TitanHQ EncryptTitanTitanHQ EncryptTitan alternativesOpenText Core Email Encryption vs TitanHQ EncryptTitan
HIPAA-compliant email encryption for Google Workspace and Microsoft 365
Key features: 8 listed. See them on the Paubox Email Encryption page.
View Paubox Email EncryptionPaubox Email Encryption alternativesOpenText Core Email Encryption vs Paubox Email Encryption
HIPAA-compliant email, marketing, and forms platform for healthcare orgs.
Key features: 10 listed. See them on the LuxSci page.
View LuxSciLuxSci alternativesOpenText Core Email Encryption vs LuxSci
SEPPmail Secure Email Gateway is an email security product that provides encryption and digital signing for email communications. It is designed to secure email traffic for organizations by enabling encrypted and signed message exchange with external and internal recipients. The gateway integrates with existing mail infrastructure to automatically apply encryption and decryption based on defined policies, without requiring end users to install additional software or manage encryption keys manually. It supports common encryption standards to enable secure communication with business partners and customers regardless of the encryption technology they use. The product is aimed at organizations that need to comply with data protection regulations and secure sensitive information sent via email, such as financial, healthcare, or legal data.</description> <parameter name="summary">Secure email gateway providing automated email encryption and digital signing
Key features: 6 listed. See them on the SEPPmail Secure Email Gateway page.
View SEPPmail Secure Email GatewaySEPPmail Secure Email Gateway alternativesOpenText Core Email Encryption vs SEPPmail Secure Email Gateway
Secure email platform with encryption, DLP, and policy automation
Key features: 10 listed. See them on the Kiteworks Secure Email page.
View Kiteworks Secure EmailKiteworks Secure Email alternativesOpenText Core Email Encryption vs Kiteworks Secure Email
End-to-end email encryption for Gmail with granular access controls
Key features: 10 listed. See them on the Virtru Gmail Encryption page.
View Virtru Gmail EncryptionVirtru Gmail Encryption alternativesOpenText Core Email Encryption vs Virtru Gmail Encryption
No Email Encryption shortlist yet. This is the closest one.
Updated 2026-11-02
See the shortlist