Email archiving

Audit-proof email archiving - stay the course. Your data is on board.

Companies are legally required to archive business emails completely, unalterably, and traceably.

Sailing yacht on calm seas - a symbol for safely stored company data

The law makes no exception

Email archiving is mandatory - missing archiving gets expensive.

In public authorities or enterprise environments, even small gaps in email archiving can have significant consequences.

GoBD & GDPR with no leeway

Legal requirements leave no room for discretion - business-relevant emails must be kept complete and unalterable.

Compliance violations

Anyone who doesn't meet the requirements risks objections, fines, and conditions during audits.

Loss of evidentiary value

Missing or alterable emails are useless as evidence in a legal dispute.

Reputational danger

A publicly known compliance violation permanently damages the trust of customers and partners.

The reality: many archiving solutions are incomplete, complex, or insecure - and become a risk themselves.

What is email archiving?

Audit-proof email archiving: definition, obligations & solution.

Audit-proof email archiving: definition, obligations & solution. Email archiving refers to the legally compliant, unalterable storage of business emails to ensure compliance, traceability, and evidentiary value. A modern email archiving solution ensures: seamless capture of all emails, unalterable storage using the WORM principle, full traceability through an audit trail, and fast access for audits and eDiscovery. In the groupios Mare Cloud, security starts before archiving even begins: every email is captured directly at the gateway - tamper-proof, encrypted, and with no user interaction. This turns email archiving from a legal obligation into a strategic security factor. Archiving at every level, WORM principle (unalterable), Complete audit trail, eDiscovery & full-text search, Fully automated at the gateway, GoBD & GDPR compliant, Business continuity & restore. KI generiert

The solution

Email archiving with groupios: fully automated and legally sound.

In the groupios Mare Cloud, you archive all emails centrally, tamper-proof, and with no user interaction - directly at the gateway, before risks even arise.

Complete capture at the gateway

The groupios Gateway ensures complete, tamper-proof capture of all emails - including incoming and outgoing communication. No danger. No dependency on the user.

Every email findable in seconds

Every email is findable within seconds - even with large data volumes. Full-text search including attachments, OCR recognition for scanned documents, filtering by sender, recipient, and time period, plus an export function. Perfect for audits, reviews, and legal cases.

Stays operational during system outages

Even during system outages or ransomware attacks, you retain access to your emails. Individual messages or entire mailboxes can be restored quickly - your ability to act is always preserved. Your business keeps running - no matter what happens.

Your benefits at a glance

Legally compliant email archiving - complete control over your company data.

groupios combines legal compliance with maximum operational security - with no added effort for your IT or your employees.

100% compliance and legal certainty

Meet all legal requirements with no added effort: GoBD-compliant archiving, GDPR-compliant processing, and WORM-secured, unalterable storage. Legal certainty isn't an add-on at groupios - it's the standard.

Seamless IT integration

Automatic archiving of all emails from Microsoft 365®, Exchange®, Google Workspace®, or standard mail servers (SMTP/IMAP) - with no add-ons, no local installations, no migration. Flexible to deploy at any time - with no system disruptions.

WORM principle & tamper protection

Without WORM storage, your email archiving isn't audit-proof. That means you don't meet central compliance requirements. groupios guarantees unalterable storage - every archived email is preserved exactly as it arrived. Audit-proof through optimal technical design.

Security before archiving

The groupios Mare Cloud protects against manipulation, malware, and data loss before storage even happens. Encryption is active by default - optionally also with secure end-to-end encryption via the modern S/MIME standard. Security as an integral part of archiving.

Complete audit trail

Every activity is logged seamlessly at all times. The complete audit trail documents who accessed which email and when - and proves the integrity of your secure email archiving with groupios during an audit. Transparency for auditors, optimal security for you.

Scalable and future-proof

Your archiving solution flexibly adapts to your company's growth - with no capacity bottlenecks, no system changes, no added effort whatsoever. Operated on a made-in-Germany infrastructure. Grows with your company. Reliable at all times.

Email archiving: groupios Mare Cloud vs. standard solutions.

Developed for organizations where security and compliance are business-critical.

Archiving point

groupios Mare Cloud: At the gateway - before risks arise

Standardlösungen: Afterward, with gaps

Capture quality

groupios Mare Cloud: Seamless archiving

Standardlösungen: Incomplete capture

Tamper protection

groupios Mare Cloud: WORM-secured storage

Standardlösungen: Alterable data

User dependency

groupios Mare Cloud: Automated, user-independent

Standardlösungen: Dependent on user behavior

GDPR / GoBD compliance

groupios Mare Cloud: Fully GoBD-compliant

Standardlösungen: Often only partially met

Data sovereignty

groupios Mare Cloud: Made in Germany, no CLOUD Act

Standardlösungen: US providers, CLOUD Act

eDiscovery

groupios Mare Cloud: Full-text search in seconds

Standardlösungen: Effortful or unavailable

Act now - here's why

The threat landscape is growing - and so is your liability risk.

Four developments make audit-proof email archiving a strategic necessity.

DSGWR

Legal requirements keep tightening continuously. Audits are becoming more frequent and more detailed. Anyone without audit-proof archiving today will stand empty-handed in front of the auditor tomorrow.

Liability

Liability risks are rising - not just for the company, but at the management level too. Missing evidence, incomplete data, or untraceable communication can lead to personal consequences.

Attacks

Cyberattacks on email infrastructure are increasing. Without separate, tamper-proof archiving, ransomware attacks can also destroy your email history - with serious consequences for continuity and compliance.

CLOUD Act

US-based archiving solutions are subject to the CLOUD Act. groupios Mare Cloud is hosted in Germany, subject to German and European law - and consistently protects your archived data.

Anyone who doesn't establish audit-proof email archiving today exposes their company to real legal, financial, and strategic consequences tomorrow. In an emergency, it's not just compliance at stake, but the legal protection of the entire company.

Frequently asked questions about legally compliant email archiving with groupios

What is audit-proof email archiving?

Audit-proof email archiving refers to the legally compliant, unalterable storage of business emails under GoBD and GDPR. It requires the WORM principle (Write Once Read Many), a complete audit trail, and fast access for audits and eDiscovery. Unlike simple mailbox storage, archived emails are tamper-proof and usable as evidence at any time.

Why do I even need separate email archiving?

Without legally compliant email archiving, you’re operating in a legal gray area - with real risk of fines, liability, and reputational damage. GoBD and GDPR require business-relevant emails to be kept complete, unalterable, and traceable. With groupios, you close this gap consistently - automated, audit-proof, and independent of user behavior.

What is the WORM principle and why is it important?

WORM stands for “Write Once Read Many” - written once, read as often as needed. Archived emails can no longer be altered or deleted after storage. The WORM principle is a central GoBD requirement and ensures archived emails can be used as unaltered evidence in audits and legal disputes. Without WORM, your archiving isn’t audit-proof.

Isn't storage in the email mailbox enough?

No. A mailbox isn’t an archive - and that’s exactly what becomes a problem in an emergency. Emails can be deleted, altered, or unintentionally overwritten. groupios eliminates this risk entirely by archiving every email tamper-proof and independent of the user directly at the gateway - following the WORM principle, before any risk can arise.

How can archiving be integrated into our existing IT architecture?

groupios integrates seamlessly at the gateway level with Microsoft 365®, Exchange®, Google Workspace®, or standard mail servers (SMTP/IMAP) - with no migration, no interruption, no local installations. No add-ons or changes to your existing IT are required. Full control over your email communication is preserved.

What happens during a cyberattack - do my emails stay accessible?

Yes. The groupios archive is separated from your production email infrastructure and protected against ransomware and system outages. Individual messages or entire mailboxes can be restored quickly. Even if your entire production infrastructure is affected, archived emails remain available - your business continuity stays protected.

How does groupios support compliance and legal certainty?

groupios ensures every email is archived complete, unalterable, and traceable - and stands up as solid evidence in an emergency. The complete audit trail, the WORM principle, and GoBD-compliant long-term storage significantly strengthen your position in audits, disputes, and liability questions.

Mare Cloud brings all security solutions together in a single platform.

Combine our various building blocks for maximum data sovereignty.

Email Security Gateway

Protection from spam, malware, and ransomware – with automatic S/MIME encryption and central certificate management.

Discover the gateway

S/MIME Encryption

Legally compliant S/MIME encryption with central certificate management – automated, with no effort for users.

Discover encryption

Cloud2Cloud Backup

Completely vendor-independent backup, for example of Microsoft 365®, OneDrive®, Teams®, SharePoint®, Gmail®, and Google Drive®.

View backup solution

Multi-Node Backup

Maximum resilience through distributed backup architecture with no central point of failure – ideal for business-critical data, for example.

Discover the backup strategy

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