MailShelf Pro

Free trial Windows

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What MailShelf Pro is

MailShelf Pro is a Windows, on-premises system for secure, long-term email archiving. It creates tamper-proof one-to-one copies in a central archive and supports any stated amount of data and email volume. Automatic scheduled archiving and full-text search help manage stored messages, with export back to an email server or email client. Sources include Microsoft 365, Microsoft Exchange, Google Workspace, IMAP4, and POP3. It works with Outlook Classic, Thunderbird, SeaMonkey, and Postbox, and handles EML, MSG, PST, OST, DBX, and MBOX files. Listed controls include retention rules, archiving for S/MIME- and PGP-encrypted mail, individual user rights, activity logging, and audits. Spam can be excluded through SpamAssassin, DNSBL queries, and blacklists. A trial runs for up to 30 days without limitations; continued use then requires purchase. The permanent license remains usable after its one-year Update & Support Subscription ends, but updates and technical support stop unless renewed. Pricing starts at €39.99.

Who it suits

MailShelf Pro fits Windows organizations needing on-premises email retention, search, access controls, and support for multiple mail systems and file formats.

What it does well

Tamper-proof central archive copies
Scheduled archiving and full-text search
Supports major mail protocols
Retention and audit capabilities
Permanent license after subscription

What to know first

Windows only
No free plan
Updates stop when support subscription expires
On-premises deployment required

Limits

The trial lasts up to 30 days and has no limitations; continued use requires purchase. A permanent license remains usable after its one-year Update & Support Subscription ends, but updates and technical support require renewal.

Plans

Plan	Billed and limits	Price
Single User License	One-time purchase; includes a one year Update & Support Subscription. · 1 computer	On request
Multi-User License for up to 5 computers	One-time purchase; includes a one year Update & Support Subscription. · Up to 5 computers within one company or household	On request
Multi-User License for up to 3 computers	One-time purchase; includes a one year Update & Support Subscription. · Up to 3 computers within one company or household	On request
Multi-User License for up to 10 computers	One-time purchase; includes a one year Update & Support Subscription. · Up to 10 computers within one company or household	On request

As zebnet.eu lists them, read 9 Oct 2026. The maker's own page has the final word.

Getting started

Open the MailShelf Pro website
Install the software on a supported Windows computer
Start the free trial for up to 30 days
Connect Microsoft 365, Exchange, Google Workspace, IMAP4, or POP3 sources
Select a one-time purchase license for one, three, five, or ten computers
Set archiving schedules, retention rules, and user rights

Verdict

MailShelf Pro provides broad protocol, client, format, and compliance-oriented archiving options for Windows. Buyers should account for its paid model and the separate subscription needed for ongoing updates and support.

Questions

Is MailShelf Pro free?

No. It is paid software starting at €39.99, with a free trial lasting up to 30 days.

Which operating systems does it support?

MailShelf Pro supports Windows 7 SP1 or higher, Windows 8.1, Windows 10 version 1809 or higher, and Windows 11.

Can it archive Microsoft 365 and Google Workspace mail?

Yes. Supported protocols include Microsoft 365, Microsoft Exchange, Google Workspace, IMAP4, and POP3.

Which email clients and file formats are supported?

Supported clients include Outlook Classic, Thunderbird, SeaMonkey, and Postbox. Formats include EML, MSG, PST, OST, DBX, and MBOX.

Does the license expire?

The software license is permanent. The included one-year Update & Support Subscription covers updates and technical support; those services end unless renewed.

Facts from MailShelf Pro's own pages

Access control and audit: The comparison lists multiuser use with individual user rights, user activity logging, and audit capabilities. · zebnet.eu, 9 Oct 2026
Archive copies: It creates tamper-proof 1:1 copies in a central archive and says it can archive any amount of data and any number of emails. · zebnet.eu, 9 Oct 2026
Company: zebNet says it is privately held, headquartered in Polegate, England, and founded in 2008. · zebnet.eu, 9 Oct 2026
Email clients: Supported email clients include Microsoft Outlook Classic, Mozilla Thunderbird, Mozilla SeaMonkey, and Postbox. · zebnet.eu, 9 Oct 2026
File formats: Supported formats include EML, MSG, PST, OST, DBX, and MBOX. · zebnet.eu, 9 Oct 2026
Founded: 2008 · zebnet.eu, 28 Sept 2026
Headquarters: Polegate, East Sussex, United Kingdom · zebnet.eu, 28 Sept 2026
License and support: The software license is permanent and remains usable after the Update & Support Subscription expires, but updates and technical support end unless the subscription is renewed. · zebnet.eu, 9 Oct 2026
Operating system: MailShelf Pro supports Windows 7 SP1 or higher, Windows 8.1, Windows 10 version 1809 or higher, and Windows 11. · zebnet.eu, 9 Oct 2026
Protocols: Supported protocols include Microsoft 365, Microsoft Exchange, Google Workspace, IMAP4, and POP3. · zebnet.eu, 9 Oct 2026
Purpose: MailShelf Pro is an email archiving solution for secure, compliant long-term email archiving. · zebnet.eu, 9 Oct 2026
Retention and encryption: The feature comparison lists retention rules and archiving of S/MIME- and PGP-encrypted emails. · zebnet.eu, 9 Oct 2026
Search and scheduling: The product provides extensive search functions and can automatically archive emails on a schedule. · zebnet.eu, 9 Oct 2026
Spam filtering: Archiving can use SpamAssassin and DNSBL queries to exclude spam and can filter emails using blacklists. · zebnet.eu, 9 Oct 2026
Trial: The product can be tried free for up to 30 days without limitations; after the trial expires, purchase is required to continue using it. · zebnet.eu, 9 Oct 2026

Where MailShelf Pro stands on Freedom251

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