DeltaMail.pro is a Swiss‑made, privacy‑first suite for email, calendar, and encrypted cloud storage. Built around a customizable zero‑knowledge end‑to‑end encryption pipeline, anonymous signup, and phishing‑resistant security enforced by default. Affordable plans comparable to Tuta and Proton — but focused 100% on secure communication and storage.
Design a highly customizable encryption workflow for both incoming and outgoing mail. Keys never leave your control; servers process ciphertext only. Attachments, subjects, and metadata can be compartmentalized according to policy.
We enforce separation between authentication identities and public email addresses used for communication. Login emails are always different from outbound identities — reducing phishing, credential stuffing, and social graph leakage.
Built in Switzerland and hosted on infrastructure designed to leave no easy footprints — with encrypted backups relayed via satellite links. Secret locations in hardened jurisdictions; no ISP fingerprints.
Everything you expect from a Proton‑class service — plus deeper controls for enterprises and power users. Run custom domains and aliases, share mailboxes, and collaborate with an encrypted calendar and cloud storage — all behind phishing‑resistant defaults.
Customizable per‑tenant policies for message body, attachments, subjects, and metadata. Keys remain user‑controlled.
Register without identity documents. We minimize data collection and support privacy‑preserving payment options.
Security controls are enforced: identity separation, strict link and sender checks, and admin‑configurable policies.
Bring your own domain, create unlimited aliases, and route mail with fine‑grained rules and policies.
Delegate access with audit trails. Create role accounts and lists without exposing primary identities.
Plan and share securely. Files and events are encrypted end‑to‑end across devices.
We’re onboarding privacy‑conscious individuals and organizations. For early access and enterprise inquiries, reach us directly.