gpg4o vs Proofpoint Email DLP and Encryption
gpg4o
bayoosoft.comProofpoint Email DLP and Encryption
proofpoint.comSide by side
| Figure | gpg4o | Proofpoint Email DLP and Encryption |
|---|---|---|
| Price from | €99.95/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| Plans published | 5 | 0 |
| Spec score · Email Encryption Software | 8.7 (#5) | 7.4 (#23) |
| Spec score · File encryption tools | 8.4 (#11) | 7.7 (#16) |
| Admin access controls | Yes | Yes |
| Encryption | It uses asymmetric encryption with private and public keys and follows the OpenPGP standard. | Encryption policies can be triggered by destination, sender, or message attributes, and encryption can serve as a TLS fallback. |
| Headquarters | Darmstadt, Germany | Sunnyvale, California, United States |
| Message expiry | No | Yes |
| Outlook integration | The add-in provides end-to-end encryption directly through the Outlook interface. | Yes |
| Secure delivery | attachment | portal |
| Support | Technical support is available through the contact process or the gpg4o Help menu in Outlook, with a log file sent automatically. | Proofpoint describes a managed service that provides expertise to optimize the technology investment, support continuous operations, and mature data protection strategy. |
Plans
gpg4o
- gpg4o€99.95 a month
- gpg4o FreeFree
- gpg4o – Extension product maintenance 1 year€5,195 a year
- gpg4o – Extension product maintenance 3 years€13,995 a year
- gpg4o€9,995, paid once
Proofpoint Email DLP and Encryption
No plans published.
In their own words
gpg4o
gpg4o is a Microsoft Outlook add-in for encrypting, decrypting, signing, and checking messages and attachments. It uses public and private keys under the OpenPGP standard, and supports encrypted HTML email, PGP/MIME, and PGP/Inline. Its key management can synchronize keys, use local or public key servers, and check the Web of Trust; central management requires Enterprise KeyServer. The product also supports terminal servers, Microsoft Policy Manager, automatic key generation, and working groups. When encryption is enabled, it protects message text and attachments, but not the subject line or recipient list. The current feature page lists Outlook 2024 or 365 Classic on Windows 11 and marks Mac OS unsupported. A limited free version is available without a time limit, and a 180-day trial is noted. The listed gpg4o plan costs €99.95 a month. After maintenance expires, users can still send and read encrypted or signed email, but they do not receive further updates.
Proofpoint Email DLP and Encryption
Proofpoint Email DLP and Encryption detects sensitive information in email and attachments to help prevent data loss and automate compliance. Administrators can apply encryption policies at global, group, and user levels through LDAP and Active Directory integrations. Detection includes hundreds of built-in identifiers and dictionaries, with custom entries supported, and scans more than 300 file types by default. Policies can trigger encryption based on destination, sender, or message attributes; encryption can also act as a TLS fallback. Recipients can access protected messages through a web portal, mobile browser, or Outlook client. A centralized dashboard provides real-time statistics and trends, incident review, and actions on non-compliant messages. Proofpoint says Email DLP integrates with Unified DLP for shared configuration, detection, and remediation across email, cloud, applications, and endpoints. Listed compliance areas include PCI, SOX, GDPR, PII, and HIPAA. The service is available on Android, iOS, web, and Windows, with cloud and hybrid deployment options. Proofpoint states that it uses HTTPS/TLS in transit and AES 256 encryption at rest, and undergoes an annual SOC 2 Type II audit. Pricing is on request; the product page offers a demo request, with no trial terms stated.