# SEPPmail Secure Email Gateway vs Thales CipherTrust Application Data Protection: side-by-side comparison (2026) [SEPPmail Secure Email Gateway](https://cybersectools.com/tools/seppmail-secure-email-gateway) is a commercial [email encryption](https://cybersectools.com/categories/email-encryption) solution by [SEPPmail AG](https://cybersectools.com/companies/seppmail-ag). [Thales CipherTrust Application Data Protection](https://cybersectools.com/tools/thales-ciphertrust-application-data-protection) is a commercial [data masking & synthetic data](https://cybersectools.com/categories/data-masking) solution by [Thales Group](https://cybersectools.com/companies/thales-group). Features, integrations, deployment and the company behind each one, side by side. ## Side-by-side comparison | | SEPPmail Secure Email Gateway | Thales CipherTrust Application Data Protection | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Encryption | Data Masking & Synthetic Data | | Verified | No | No | | Deployment type | On-Premises | Hybrid | | Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | SEPPmail AG | Thales Group | | Headquarters | – | – | ### Use cases and capabilities | | SEPPmail Secure Email Gateway | Thales CipherTrust Application Data Protection | |---|---|---| | Encryption | Yes | Yes | | Gateway | Yes | – | | SMTP | Yes | – | | GDPR | Yes | – | | DKIM | Yes | – | | SPF | Yes | – | | DMARC | Yes | – | | TLS | Yes | – | | PII | Yes | – | | Security Compliance Training | Yes | – | | SDK | – | Yes | | Tokenization | – | Yes | ### Core features **SEPPmail Secure Email Gateway** 6 features listed. Sign in on the page to see them. **Thales CipherTrust Application Data Protection** 10 features listed. Sign in on the page to see them. ### Integrations **SEPPmail Secure Email Gateway** 12 integrations listed. Sign in on the page to see them. **Thales CipherTrust Application Data Protection** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [SEPPmail Secure Email Gateway](https://cybersectools.com/tools/seppmail-secure-email-gateway) fits if you need to run it on your own servers. - [Thales CipherTrust Application Data Protection](https://cybersectools.com/tools/thales-ciphertrust-application-data-protection) fits if you need both cloud and on-premises options. ## SEPPmail Secure Email Gateway vs Thales CipherTrust Application Data Protection FAQ Common questions when comparing SEPPmail Secure Email Gateway vs Thales CipherTrust Application Data Protection for email encryption. ### What is the difference between SEPPmail Secure Email Gateway and Thales CipherTrust Application Data Protection? **SEPPmail Secure Email Gateway**: Built by SEPPmail AG. **Thales CipherTrust Application Data Protection**: SDK for app-level data encryption, tokenization & masking with centralized mgmt. Built by Thales Group. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes SEPPmail Secure Email Gateway and Thales CipherTrust Application Data Protection? **SEPPmail Secure Email Gateway** is made by SEPPmail AG. **Thales CipherTrust Application Data Protection** is made by Thales Group. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is SEPPmail Secure Email Gateway a good alternative to Thales CipherTrust Application Data Protection? In part. SEPPmail Secure Email Gateway and Thales CipherTrust Application Data Protection are not in the same category on CybersecTools. Both cover Encryption. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [SEPPmail Secure Email Gateway vs Z1 SecureMail Gateway](https://cybersectools.com/compare/seppmail-secure-email-gateway-vs-zertificon-z1-solutions) - [SEPPmail Secure Email Gateway vs LuxSci](https://cybersectools.com/compare/luxsci-vs-seppmail-secure-email-gateway) - [SEPPmail Secure Email Gateway vs TitanHQ EncryptTitan](https://cybersectools.com/compare/seppmail-secure-email-gateway-vs-titanhq-encrypttitan) - [Thales CipherTrust Application Data Protection vs Z1 SecureMail Gateway](https://cybersectools.com/compare/thales-ciphertrust-application-data-protection-vs-zertificon-z1-solutions) - [Thales CipherTrust Application Data Protection vs LuxSci](https://cybersectools.com/compare/luxsci-vs-thales-ciphertrust-application-data-protection) - [Thales CipherTrust Application Data Protection vs TitanHQ EncryptTitan](https://cybersectools.com/compare/thales-ciphertrust-application-data-protection-vs-titanhq-encrypttitan) ## Alternatives to each - [See all SEPPmail Secure Email Gateway alternatives](https://cybersectools.com/alternatives/seppmail-secure-email-gateway) - [See all Thales CipherTrust Application Data Protection alternatives](https://cybersectools.com/alternatives/thales-ciphertrust-application-data-protection) --- Source: https://cybersectools.com/compare/seppmail-secure-email-gateway-vs-thales-ciphertrust-application-data-protection For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/seppmail-secure-email-gateway.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on SEPPmail Secure Email Gateway and Thales CipherTrust Application Data Protection: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md