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Open Archiver Enterprise
What it is
Open Archiver Enterprise is a self-hosted system for keeping a searchable, tamper-proof record of company email on infrastructure the organization controls. It connects to Google Workspace, Microsoft 365, and IMAP, and can bulk import PST, EML, and MBOX files. Enterprise journaling captures unmodified messages for each recipient, including BCC recipients, alongside mailbox synchronization. Compliance tools include retention policies, legal holds, a hash-chained audit log, and integrity reports for GoBD and GDPR-related workflows. The product supports full-text search across email and attachments, eDiscovery tools, and EML export. Security features include AES-256 encryption for archived files, OIDC and SAML single sign-on, identity-provider group role mapping, and organization-wide two-factor authentication policies. The vendor says email, the index, and encryption keys remain on customer-controlled servers; stored messages are plain .eml files. The self-hosted open-source edition is free with community support. Enterprise is a perpetual license purchased once per archived mailbox at €14, paid once, with lower per-seat rates for larger counts. The first year of updates and support is included. Enterprise features are assigned individually by license key, so a license may not include every feature.
For and against
For
- Connects to Google Workspace, Microsoft 365, and IMAP.
- Supports retention policies and legal holds.
- Searches email and attachments, with EML export.
- Emails and encryption keys stay on customer-controlled servers, according to the vendor.
Against
- Enterprise costs €14, paid once per archived mailbox.
- Enterprise features are assigned individually by license key.
- Updates and technical support stop if support lapses.
The verdict
Open Archiver Enterprise combines self-hosted email archiving with search, journaling, and compliance controls. Check which Enterprise features a license key includes and note that ongoing support and updates require active support coverage.
Who it suits
Open Archiver Enterprise suits organizations that want to host their email archive on infrastructure they control. It may fit teams with retention, legal hold, audit, or eDiscovery needs.
Plans and prices
Self-hosted
open-source edition · self-hosted containers · community support · IMAP, PST, EML, Mbox, Microsoft 365 and Google Workspace ingestion
Read 15 Oct 2026 · openarchiver.com
Enterprise Edition
500+ seats: €14.00/seat · 300–499: €17.00/seat · 100–299: €21.00/seat · 50–99: €26.50/seat
Read 15 Oct 2026 · openarchiver.com
On the record
- API authentication
- API clients can authenticate with short-lived login JWTs or long-lived API keys passed in the X-API-KEY header.docs.openarchiver.com · read 15 Oct 2026
- API rate limiting
- The API defaults to 100 requests per minute per IP and returns HTTP 429 when the limit is exceeded; environment variables can change the limits.docs.openarchiver.com · read 15 Oct 2026
- Audit log
- Enterprise adds a tamper-evident audit log and auditor-oriented integrity reports.openarchiver.com · read 15 Oct 2026
- Company founded
- The company record states that LogicLabs OÜ was established on 14 October 2022.corpinfo.ee · read 15 Oct 2026
- Company headquarters
- The company record lists Tartu mnt 67/1-13b, Tallinn, Estonia as the registered address.corpinfo.ee · read 15 Oct 2026
- Company legal name
- Estonian business data identifies the maker as LogicLabs OÜ, registry code 16593924.corpinfo.ee · read 15 Oct 2026
- Compliance
- Enterprise includes retention policies, legal holds, a hash-chained audit log and integrity reports for GoBD and GDPR-related workflows.openarchiver.com · read 4 Oct 2026
- Data control
- The product is self-hosted; the vendor says emails, index and encryption keys stay on servers the customer controls.openarchiver.com · read 4 Oct 2026
- Deduplication
- Message-level deduplication is included in both the open-source and Enterprise editions.openarchiver.com · read 15 Oct 2026
- Deployment
- The installation guide describes deploying the web interface with Docker Compose on a server or local machine.docs.openarchiver.com · read 4 Oct 2026
- Deployment portability
- Both editions use the same database schema, so an open-source deployment can be switched to Enterprise by changing the Docker image and license key without reimporting or reindexing.openarchiver.com · read 15 Oct 2026
- Documentation depth
- The documentation site includes installation, provider setup, search, indexing, upgrades, troubleshooting, enterprise features and a detailed API reference.docs.openarchiver.com · read 15 Oct 2026
- Edition limit
- Enterprise features are entitled individually by the license key, so a plan can include some Enterprise features and not others.openarchiver.com · read 4 Oct 2026
- Email journaling
- Enterprise supports real-time SMTP email journaling with per-recipient archiving and preservation of original messages.openarchiver.com · read 15 Oct 2026
- Encryption
- Enterprise encrypts archived files at rest with AES-256, while stored credentials are encrypted in both editions.openarchiver.com · read 15 Oct 2026
- Enterprise compliance
- Enterprise is marketed as preserving tamper-proof email records on the customer’s own servers for GoBD and GDPR requirements.openarchiver.com · read 15 Oct 2026
- Ingestion
- Connects to Google Workspace, Microsoft 365 and IMAP, and supports bulk import from PST, EML and MBOX files.openarchiver.com · read 4 Oct 2026
- Ingestion integrations
- Documented ingestion sources include Google Workspace, Microsoft 365, generic IMAP, OAuth mailboxes, EML, PST and Mbox files.docs.openarchiver.com · read 15 Oct 2026
