Email Archiving and GDPR: What Companies Need to Know
What the GDPR requires for archiving, which emails must be kept, and why local storage gives you back control.
Why Does the GDPR Matter for Email Archiving?
Emails are today among the most important means of communication in businesses. Invoices, contracts, quotes, and many other business-relevant pieces of information are sent and received by email every day.
At the same time, businesses must meet the requirements of the General Data Protection Regulation (GDPR) and ensure that personal data is adequately protected.
Careful email archiving can help meet retention obligations and protect personal data.
What Does the GDPR Require for Email Archiving?
The GDPR does not explicitly prescribe how emails must be archived. However, it requires that personal data:
- is processed securely
- is protected against loss
- is protected against unauthorized access
- is stored only for as long as necessary
Businesses must therefore take appropriate technical and organizational measures to protect stored emails.
Which Emails Must Be Archived?
Not every email needs to be stored permanently.
Typical emails subject to archiving requirements are:
- Invoices
- Quotes
- Order confirmations
- Contracts
- Business correspondence
- Tax-relevant documents
Private emails from employees are subject to different regulations and should be handled separately.
Challenges in Email Archiving
Many businesses rely exclusively on their email provider.
This can carry risks:
- accidentally deleted messages
- provider changes
- account lockouts
- data loss
- lack of long-term archiving
Additional local archiving can help keep important messages available long-term.
Advantages of Local Email Archiving
More Control Over the Data
Emails reside on your own device or within your own infrastructure.
Protection Against Provider Dependency
Businesses remain independent of individual cloud providers.
Faster Research
Searchable archives enable the quick retrieval of older messages.
Long-Term Availability
Important documents remain accessible even after many years.
Archive Gmail, Outlook, and IMAP Accounts
Many businesses today use:
- Gmail
- Microsoft Outlook
- Microsoft 365
- Own IMAP servers
A modern archiving solution should therefore support various email systems and enable centralized archiving.
GDPR and Data Security
When storing personal data, businesses should pay particular attention to the following points:
- Access protection through user accounts
- Secure passwords
- Encrypted data transmission
- Regular data backups
- Protection against unauthorized access
- Documented processes
The specific implementation depends on the size of the business and its particular requirements.
An example: storage location, volume and deletion concept
The developer's own archive holds 81,638 emails from 6 accounts. It sits on his own computer, with no upload and no account with Mail Archive.

You choose where the archive lives during setup: on the computer or on a drive of your choice. Whoever has access to that computer or drive can read the emails. Access protection and disk encryption therefore remain a task for the operating system and your organisation. You can include the archive folder in your normal backup.
For deletion, the Business version offers data cleanup after a deadline: emails are removed from the archive automatically once their retention period has passed. That can help companies put a deletion concept into practice. Which periods apply is something to clarify with your tax advisor.
By default Mail Archive only reads and deletes nothing at the provider unless you switch that on explicitly. The app is a tool, not an assurance: it replaces neither a procedure nor advice.
Archive Emails Locally with Mail Archive
Mail Archive enables the archiving of Gmail, Outlook, and IMAP accounts directly on the Mac.
The most important features include:
- Local storage of emails
- Archiving of attachments
- Fast full-text search
- Support for multiple accounts
- Long-term data backup
- Independence from cloud providers
This allows users to retain control over their archived messages and access important information at any time.
Conclusion
Careful email archiving is an important component of modern business processes. Businesses must often retain business-relevant emails for many years while simultaneously ensuring the protection of personal data.
A local archiving solution can help keep important messages available long-term, improve control over your own data, and reduce dependence on individual cloud providers.
Archive email locally, no subscription
Save Gmail, Outlook, Microsoft 365 and IMAP accounts on Mac or Windows. Try it free with one account; Pro is a one-time €14.99.