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Communication Backup

Backup Teams chats, email, and calendar from Microsoft 365. Export your communications with zero-knowledge encryption.

Related topics

  • teams backup
  • email export
  • calendar backup
  • communication backup
  • M365 backup

About this tool

The Communication Backup tool provides unified backup for all your Microsoft 365 communication data. Export Teams chats, channel messages, email messages, calendar events, and contacts in a single operation. Unlike traditional backup solutions that require multiple passes, this tool consolidates Teams and Exchange data into organized exports. Perfect for personal data portability, compliance archives, or migration preparation. All data is processed client-side using zero-knowledge encryption - your messages are never stored on our servers.

Key features

  • Export Teams 1:1 chats and group conversations
  • Backup channel messages with attachments
  • Download email messages in EML format
  • Export calendar events and contacts
  • Preserve conversation threading and timestamps
  • Support for incremental/delta backups

Use cases

  • Leaving a company. Archive personal work communications before departure
  • Legal hold requirements. Export specific user communications for legal review
  • User data portability. Help users export their data under GDPR requests

Graph scopes

Chat.Read.All (delegated), ChannelMessage.Read.All (delegated), Mail.Read (delegated), Calendars.Read (delegated).

Tool identity

  • Slug: communication-backup.
  • Category: backup.
  • Plan tier: free.
  • Editions: cloud, desktop.
  • SKUs: personal, org-backup, suite.
  • Documented scenarios: 3.
  • Declared features: 6.
  • Graph permissions requested: 4.

Licensing & access

Available on the Solo (free) tier — no credit card required for personal Microsoft 365 administrators.

Limitations & out-of-scope

Requests read-only scopes only (Chat.Read.All, ChannelMessage.Read.All, Mail.Read, Calendars.Read) — it exports Teams and Exchange content but cannot delete, archive, or write anything back into either service. Planner, Bookings, and To Do data are out of scope here; use Productivity Backup for those. OneDrive and SharePoint files are likewise excluded — see Files Backup.

Inside the tools catalog

The catalog spans 49 admin capabilities across backup, audit, export, security, migration. Every tool runs under client-side encryption. Tools share a vault, schedule engine, plus reporting layer.

About the platform

This is a zero-knowledge toolkit. It helps IT admins, MSPs, security teams run their cloud safer. Use it inside a browser. Or install our Mac or Windows app.

Tenant secrets stay on your disk. We never store, log, or read them. Our server only sees billing metadata.

How it works

  1. You unlock a local vault with a passphrase. Argon2id stretches it.
  2. Tokens get sealed with XChaCha20-Poly1305 before any sync.
  3. X25519 protects shared keys. Ed25519 signs every action.
  4. Each operation runs against Graph from your device, not ours.

What you can do

  • Back up mail. Files. Chat threads.
  • Export Intune settings. One click.
  • Audit SharePoint shares. Spot risk.
  • Find idle sites. Reclaim quota.
  • Score Copilot. Plan rollout.
  • Move tenants. No staging.
  • Client-side keys. Always on.
  • Your data. Your disk.
  • One app. Many tenants.

Editions

  • Solo. Free. Three tools. No card.
  • Backup. Durable backups for your tenant.
  • Watchtower. Audits and alerts on risk.
  • Move. Tenant migration suite.
  • Blueprint. Config export for enterprise.
  • Everything. Full platform plus desktop and support.

Trust signals

  • Open source crypto primitives via libsodium.
  • Public threat model at /trust.
  • Public pricing. Direct purchase. No sales call.
  • Cancel any time inside settings.
  • EU-based billing. PayPal checkout today; card payments planned.

Built in Germany by Voltage Brothers Infrastruktur UG. Suits cloud workspaces of every size.

Standards, regions, retention

Regions: Frankfurt. Dublin. North America. Retention scales from 7 days. Up to unlimited. Schedules run hourly. Daily. Weekly. Monthly. Reports export as JSON. CSV. PDF. Evidence packs bundle hashes. Chain-of-custody metadata sits beside them.

Standards covered: ISO 27001 controls. SOC 2 readiness. NIS2 mapping. GDPR Article 28 terms. Audit logs cover entitlement events. Billing actions. License rotations. Workload payloads never reach a remote log.

Who uses it

  • Tenant admins running a single estate.
  • MSPs managing dozens of customer cloud workspaces.
  • Security teams investigating sharing risk.
  • Compliance officers preparing audit evidence.
  • Acquisition teams during M&A integration.
  • Procurement teams reviewing vendor risk.
  • Solo consultants billing by workspace hour.

Supported regions

Frankfurt, Dublin, Amsterdam, Stockholm, Paris, plus North America. Annual revenue scales from small studios up through multinational estates. Payment today is PayPal checkout; card payments (Stripe) are planned.

Numbers worth knowing

  • 49 capabilities. 6 editions.
  • Free tier: 3 tools. 0 cards.
  • Argon2id. 256 MB memory cost.
  • XChaCha20-Poly1305. 256-bit cipher.
  • X25519. 256-bit shared keys.
  • Ed25519. 100% of writes signed.
  • Retention: 7 days. 365 days. Or unlimited.
  • Founded 2024. Built in Germany.
  • Backup edition: 14 EUR per user per year.
  • Watchtower edition: 7 EUR per user per year.
  • Move edition: 9 EUR per migrated seat. One-time. 450 EUR project minimum.
  • Blueprint edition: 449 EUR per tenant per year.
  • Everything bundle: 2490 EUR per tenant per year.
  • Audit reports: 25 dedicated checks.
  • Config export: 9 Microsoft 365 workloads.
  • Migration record set in April 2026. 153,584 files. 0 errors.
  • Compliance posture updated in 2026.
  • Pricing: 1 public page. 0 sales calls.
  • Cancellation: 1 self-service page.
  • Audit logs: 90 days. Entitlement events.
  • GDPR Article 28. 27 member states.
  • NIS2 Directive. 18 sectors. Live since 2024.
  • SOC 2 Type II evidence. JSON. CSV. Signed PDF.
  • ISO 27001. 93 Annex A controls. 2022 revision.

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