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Audit-proof mail archiving

Audit proofed only for german tax office. For further information please contact our sales team.

For email backup only, everyone can use it.

Audit-proof mail archiving

Please note that “audit-proof mail archiving” is a separate feature.
Please contact your sales contact person.

If you have any questions about the configuration, please contact onOffice Support (+49 241 44 686 122 / / Support Chat in Messenger).

General information

The audit-proof mail archiving system creates a copy of all incoming and outgoing emails including emails within the company. The archiving takes place on servers within the onOffice GmbH and uses the software Benno MailArchive.


The revision-safe mail archiving can only take place if the email server is operated by onOffice GmbH and is then valid for all email inboxes of this domain – i.e. all email addresses where the part after the “@” is the same. If you have any questions regarding the move of your email inboxes to onOffice, please contact your sales contact.

Access to the archive

To access the archive, you need a separate administrative user right(access to external email archive), which you should only grant to selected users.
With this right, the user can open and search the mail archive from his mailbox. He has access to all mailboxes to which he is assigned .
Via the email administration in the basic settings , a user with this right can view all mailboxes .

The mail archiving can be accessed in the email module via the action bar at “further actions >> access email archive”.

Use of the mail archive

Within the mail archive you can search for emails, and with the “advanced search” even complex search requests can be created. Details on usage can be found in the Benno MailArchive 2.0 Tutorial: Find quickly and easily by email from the manufacturer.

Audit-proof mail archiving