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Description
Aster Mail is a complimentary, open-source email service that offers end-to-end encryption for users seeking genuine privacy without cumbersome technical requirements. The encryption process occurs directly on your device, ensuring that our servers never have access to your messages or any associated metadata.
Utilizing the widely accepted OpenPGP standard with RSA-4096 keys, Aster ensures that you are not bound to a single provider; your keys can be used seamlessly with GPG, Thunderbird, or any compatible PGP client, and they are easily discoverable via WKD and public key servers. For communications between Aster users, the service employs a Signal-inspired X3DH and Double Ratchet protocol, providing enhanced forward secrecy.
Each subscription tier comes with encrypted email capabilities, support for custom domains, free aliases, protection against trackers, and unrestricted access across both web and desktop platforms. The complete codebase is available under the AGPL v3 license on GitHub, allowing for thorough audits, and it features a public warrant canary along with a clear vulnerability disclosure policy.
The free tier provides 10 GB of encrypted storage, along with 5 aliases and 1 custom domain. Paid subscriptions begin at just $2.99 per month, and all servers are conveniently located in Germany, ensuring compliance with stringent data protection regulations. Users can feel secure knowing their communications are protected by top-notch encryption standards.
Description
OpenText Core Email Encryption offers an effortless, policy-based way for organizations to safeguard confidential information shared via email. It scans outgoing messages instantly, identifying sensitive content and applying the appropriate encryption or compliance action based on predefined rules. The platform supports secure collaboration through a dedicated Secure Compose portal, enabling external partners to initiate encrypted communication without needing additional software. Its intelligent Best Method of Delivery system ensures encrypted messages reach recipients through the most compatible and secure channel available. Administrators can monitor activity through intuitive dashboards that highlight triggers, delivery methods, and compliance trends. Out-of-the-box templates simplify deployment, while flexible customization allows teams to adapt policies to evolving regulatory requirements. Because the system operates in the OpenText Secure Cloud, organizations benefit from easy setup, ongoing management, and anytime, anywhere protection. Overall, the solution minimizes risk, increases transparency, and makes enterprise-grade email security accessible across all devices and roles.
API Access
Has API
API Access
Has API
Screenshots View All
No images available
Integrations
HostBill
OpenText Core Email Threat Protection
Pricing Details
No price information available.
Free Trial
Free Version
Pricing Details
No price information available.
Free Trial
Free Version
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Vendor Details
Company Name
Aster Mail
Founded
2025
Country
United States
Website
astermail.org
Vendor Details
Company Name
OpenText
Founded
1991
Country
Canada
Website
cybersecurity.opentext.com/products/email-security/email-encryption/
Product Features
Product Features
Email Security
Anti Spam
Anti Virus
Email Attachment Protection
Encryption
Policy Management
Quarantine
Reporting/Analytics
Whitelisting / Blacklisting
Alternatives
No Alternatives