Platform & Architecture
Product Overview ESMTP, IMAP4rev2, JMAP, ActiveSync 16.1, Webmail & GoBD in one binary All 40+ Features v1.0.0 Dual-DKIM, SpamGuard, Encrypted File Share, OpenTelemetry, ZUGFeRD & OCR full-text search System Comparison Side-by-side matrix vs. Stalwart, Microsoft Exchange®, SmarterMail, Axigen & more
Migration & Security
1-Click Migration Direct importer for Windows® hMailServer, Exchange® & live IMAP sync Security & Trust GoBD WORM, IDW PS 880 roadmap, release changelog & checksums
Try instantly in your browser: Explore the Admin Cockpit & Webmail live without signing up.
Live Demo Hub -> /admin/ /mail/
Setup & Reference
Guided Installation 8 Steps From fresh Windows .msi, Linux, or Docker host to verified mail flow Documentation Hub 14 Guides Structured manual in 5 categories: DNS, IPv6, TLS, SpamGuard & GoBD 19 Hoster & NAS Blueprints Docker® Compose, Windows® Service, Proxmox®, Synology®, Hetzner & netcup
Live Tools & Automation
DNS & Reverse DNS Advisor Live inspector & generator for MX, SPF, Dual-DKIM, DMARC & IPv4/IPv6 PTR CLI & API Object Schema (Reference) 12 Types All objects, JSON fields, enums, nextxch-cli & POST /api/v1/send Firewall & pfSense Troubleshooting Symptom playbooks for Port 25, Hairpin NAT, TLS certs & ActiveSync
Self-contained verified packages: 100% air-gapped ready · Windows .msi, Linux .deb/systemd & Docker.
SHA-256 Checksums ->
Live Demo Pricing Contact
EN
  • ENEnglish
  • DEDeutsch
  • ZH中文
  • JA日本語
  • ESEspañol
  • FRFrançais
  • PTPortuguês
  • ITItaliano
  • ARالعربية
  • HIहिन्दी
Start for free
Interactive Live Demo (Admin & Webmail)
Product & Architecture
Product Overview All 40+ Features System Comparison (Stalwart, Exchange® & more) 1-Click Migration (hMailServer & IMAP) Security, GoBD & Release History
Documentation & Tools
Guided Installation (8 Steps) Documentation Hub (14 Guides) 19 Hoster, NAS & Container Blueprints DNS & Reverse DNS Advisor nextxch-cli Command Reference API & CLI Object Schema (All Fields) API Keys & Send API (/api/v1/send)
Pricing & Licensing
Pricing, Calculator & Checkout Enterprise Request & Contact
Request an Enterprise trial Pricing & Calculator
Legal › Refund & Cancellation Policy

Refund & Cancellation Policy

Last updated: 3 November 2026 · Version 1.1 · iqmeta GmbH

← All legal documents
This English version is a convenience translation. In case of any discrepancy, the German version prevails.
Contents
  1. 1. No statutory right of withdrawal
  2. 2. Try before you buy
  3. 3. Goodwill refund within 14 days
  4. 4. Cancelling a subscription
  5. 5. Upgrades & downgrades
  6. 6. Processing of refunds

1. No statutory right of withdrawal

Paid licenses are sold exclusively to businesses (B2B). The statutory right of withdrawal for consumers under Sections 312g, 355 BGB therefore does not apply. The Free tier is free of charge; refunds do not apply to it. This policy describes the voluntary rules we apply in addition.

2. Try before you buy

Every customer can request a free Enterprise trial before purchasing and test nextxch for 30 days with the full feature set, including ActiveSync, EWS, MAPI over HTTP and Autodiscover. The request is made via the request form or from the admin cockpit of the software (licence page). After the request the Customer receives the trial key by email together with the separate license agreement for the Microsoft protocols and pastes it into the admin cockpit. Free can be used permanently at no cost without any request. We therefore expect a purchase decision to be made on an informed basis.

3. Goodwill refund within 14 days

If a purchased license key has not yet been activated on any installation, we refund the license fee in full on request within 14 days of purchase. Requests must be sent from the purchasing account's email address to support@nextxch.com stating the order number. Once a key has been activated, refunds are only granted in the cases set out in the warranty provisions or at our discretion.

4. Cancelling a subscription

Annual subscriptions can be cancelled at any time with 30 days' notice to the end of the current term by email. The license remains valid until the end of the paid term; afterwards the installation falls back to Free without data loss. There is no pro-rata refund for the remaining term, unless the cancellation results from a material defect we failed to remedy.

5. Upgrades & downgrades

Additional mailboxes can be added at any time and are charged pro rata for the remaining term. Downgrades take effect at the next renewal date.

6. Processing of refunds

Refunds are made via the original payment method (Stripe) or by bank transfer within 14 days of approval. A credit note including VAT correction is issued. Refunded license keys are revoked; the consequences of a revocation under Section 7 of the EULA apply. Data is retained.

Trademark notice: Microsoft, Outlook, Exchange and ActiveSync are trademarks of Microsoft Corporation. nextxch is not affiliated with Microsoft. Exchange Online, Microsoft 365, Teams, Windows, Windows Server, SQL Server and Azure are also trademarks of Microsoft Corporation; Apple, iPhone, iPad, Mac, iOS, macOS and Safari are trademarks of Apple Inc.; Google, Gmail, Google Play and Android are trademarks of Google LLC; WhatsApp is a trademark of WhatsApp LLC; Mozilla and Thunderbird are trademarks of the Mozilla Foundation; Docker, Kubernetes, PostgreSQL, Linux, Debian, Ubuntu, Proxmox, Raspberry Pi, Synology, Stripe and all other product and company names mentioned are trademarks of their respective owners. Third-party trademarks are referenced solely to state technical compatibility; nextxch and iqmeta GmbH are not affiliated with, sponsored, licensed or certified by their owners. All trademark notices

© iqmeta GmbH · Am Sonnenhang 24 · 71111 Waldenbuch · Germany · Back to Legal overview

Sovereign Mail & Groupware Server: mail, calendars, contacts and GoBD archive on your own infrastructure, for Docker® Compose, Windows Server® (no Docker®), Linux®, macOS®, NAS, and Kubernetes®. Engineered in Germany by iqmeta GmbH.

Made and hosted in Germany Made and hosted in Germany exali IT-Haftpflicht Siegel iqmeta GmbH IT Liability InsuredVerified Seal · iqmeta GmbH

Platform & Tools

  • Read-Only Live Demo (Admin & Webmail)
  • Installation Manual (8 Steps & Troubleshooting)
  • Admin Manual, Defaults & Best Practices
  • All Features & Screenshots
  • DNS / SPF / DKIM / rDNS Advisor
  • Docker® Compose & Windows® Service Guides
  • Compare with Stalwart, Exchange® & more
  • 1-Click hMailServer & IMAP Migration
  • Pricing & License Calculator

Trust, Security & Legal

  • Release History, Escrow & Audit Status
  • Security Policy (security.txt)
  • SHA-256 Release Checksums
  • support@nextxch.com
  • Vulnerability Disclosure

Legal

  • Legal & Compliance
  • Imprint
  • Terms and Conditions
  • Privacy Policy
  • Cookies Policy
  • License Agreement (EULA)
  • Data Processing Agreement
  • Third-Party Notices
© 2026 iqmeta GmbH · Am Sonnenhang 24, 71111 Waldenbuch, Germany. Microsoft, Outlook, Exchange and ActiveSync are trademarks of Microsoft Corporation. nextxch is not affiliated with Microsoft. Exchange Online, Microsoft 365, Teams, Windows, Windows Server, SQL Server and Azure are also trademarks of Microsoft Corporation; Apple, iPhone, iPad, Mac, iOS, macOS and Safari are trademarks of Apple Inc.; Google, Gmail, Google Play and Android are trademarks of Google LLC; WhatsApp is a trademark of WhatsApp LLC; Mozilla and Thunderbird are trademarks of the Mozilla Foundation; Docker, Kubernetes, PostgreSQL, Linux, Debian, Ubuntu, Proxmox, Raspberry Pi, Synology, Stripe and all other product and company names mentioned are trademarks of their respective owners. Third-party trademarks are referenced solely to state technical compatibility; nextxch and iqmeta GmbH are not affiliated with, sponsored, licensed or certified by their owners. All trademark notices
Trust & Changelog Imprint Privacy Legal Third-Party Notices Sitemap