Legally Sound Email Archiving

GoBD-compliantemail archiving.Legally sound with Archive.

Archive by Conbool archives every business email immutably, completely, and traceably. Retention periods under German HGB and AO are met automatically.

GoBD-Compliant Email Archiving under HGB and AO

Archive by Conbool supports audit-proof archiving of business emails. Messages are captured immutably, retained completely, and remain machine-readable throughout the statutory retention periods.

Why legally sound email archiving is mandatory

6 years
retention period for commercial and business letters under § 257 HGB and § 147 AO
8 years
retention period for accounting records including invoices since 1 January 2025
10 years
retention period for annual financial statements and opening balance sheets
Required
business emails are subject to retention obligations just like paper documents

What the GoBD require of an archive

The German principles for the proper management and retention of books, records, and documents in electronic form set clear requirements for every email archive.

Immutability

Once archived, emails may not be altered or deleted after the fact. Every message is stored with software-enforced immutability and secured by an externally anchored hash chain, so tampering stays detectable and provable at any time.

Completeness

Every business-relevant email must be captured without gaps. Capture happens directly in the mail flow, before a message even reaches a mailbox.

Traceability

The entire archive stays searchable and machine-readable at all times. An activatable access log documents every read access.

What sets Archive apart

Legally sound archiving without additional software in the mailbox. Archive works directly in the mail flow and covers the entire statutory retention period.

Capture in the mail flow

Inbound and outbound emails are archived directly at the gateway. No connector to the mail server or mailbox is required.

Plaintext archiving of encrypted mail

Messages encrypted with S/MIME or PGP are archived in decrypted form and remain permanently searchable in plaintext.

Full-text search across the archive

The entire archive is searchable by sender, subject, content, and attachment. Results are available within seconds.

Automated deletion policy

Once the retention period ends, messages are removed automatically and with a log, following the requirements of the GDPR.

Guided PST migration

Existing archives and PST files are imported without a detour through Outlook. The historical record is preserved in full.

EU data sovereignty

All data is stored in data centers within the EU. Access under the US CLOUD Act is ruled out.

With and without legally sound archiving

Leaving business emails solely in the mailbox risks gaps during a tax audit. Archive closes those gaps.

Without proper archiving

  • Emails sit in the mailbox and can be altered
  • Deleted messages are lost for good
  • Encrypted mail remains impossible to find
  • Retention periods are tracked manually
  • Process documentation is missing at audit time

With Archive

  • Immutable storage, software-enforced and secured by a hash chain
  • Gapless capture directly in the mail flow
  • Plaintext index of S/MIME and PGP
  • Automated deletion policy after the period ends
  • Process documentation is included

A legally sound archive in three steps

1

Connect

Archive is placed as a gateway in the mail flow. Existing mailboxes and mail servers remain unchanged.

2

Archive

Every inbound and outbound email is captured immutably and given an audit log entry.

3

Prove

During an audit, the archive, process documentation, and analyses are available in machine-readable form at any time.

FAQ

What do the GoBD require of email archiving?
The GoBD require that business-relevant emails be retained completely, immutably, traceably, and in machine-readable form. In addition, process documentation describing the entire archiving process must be maintained. Archive meets these principles through immutable storage directly in the mail flow.
Is there an official GoBD certification?
No. An official GoBD certification does not exist, so no software can legitimately be called GoBD-certified. The only sound statement is that a solution supports GoBD-compliant archiving. Archive supports these requirements and provides the corresponding process documentation. A testimonial under IDW PS 880 is in preparation.
Which retention periods apply to emails?
Commercial and business letters must be retained for six years under § 257 HGB and § 147 AO. For accounting records including invoices, a period of eight years applies following the Fourth Bureaucracy Relief Act, effective 1 January 2025. Annual financial statements and opening balance sheets must be retained for ten years. In each case the period begins at the end of the calendar year in which the document was created.
What is process documentation?
Process documentation describes in a traceable way how emails are captured, stored, secured, and deleted after the retention period ends. It is part of the GoBD and is presented during a tax audit. For Archive, prepared process documentation is available that can be adapted to the respective organization.
How are encrypted emails archived?
Messages encrypted with S/MIME or PGP are decrypted as they pass through the gateway and then archived in plaintext. This keeps the content permanently searchable and machine-readable, even if the original key is no longer available later.
What happens after the retention period ends?
Once the period ends, the affected emails are removed by the automated deletion policy. The deletion follows the requirements of the GDPR and is logged. Until the period ends, every message stays stored immutably and protected against premature deletion.

Archive with legal certainty using Archive.

Archive by Conbool supports GoBD-compliant archiving of business emails. Immutable, complete, and with EU data sovereignty.