An email archiving solution made for SMBs from 5 up to 2,000 users, which is deployed as an on- premises software in a Windows environment. Low maintenance and hardware requirements. Easy to set up and first class support by MailStore respectively our Value Added Distributors. MailStore Server® enables to comply with legislation and regulations for email archiving. MailStore Server has seen successful operation at tens of thousands of companies in over 100 countries and from various industries.

Target Audience: SMBs in all industries. Especially IT administrators, IT managers and owners of small businesses.

Main advantages

  • Assistance with regulatory compliance
  • Help with fulfilling GDPR obligation
  • Fast full-text searching for emails and attachments
  • Protection against data loss
  • Reduce the workload of email servers
  • Save up to 70% storage space
  • Simplify backup and restore
  • Independence of cumbersome PST files
  • Eliminate mailbox quotas

Main features

  • Flexible archiving to specific company needs
  • Scalable archive technology
  • Compliance specifics
  • Speedy acess for all users 
  • Any email can be reestablished from the archive thought standard email files, thus garanteeing company independency in the long run.

What is new in version 23.1?

  • Retention policies: they support the inclusion or exclusion of certain archives
  • Archiving and exporting: using new OAuth authentication (via Microsoft 365 operated by 21Vianet)
  • Directory services: they allow to synchronize users (via Microsoft Graph API). For synchronized users they allow direct authentication (via Microsoft 365 operated by 21Vianet, with OpenID Connect)

System Requirements


  • Operating system: Supported Microsoft Windows Desktop or Server operating system
  • Processor: Intel Core 2 Duo or compatible CPU @ 2GHz to 25 users or 1000 emails/day; Intel Core 2 Quad or compatible CPU @ 2.4GHz to 75 users or 2500 emails/day; Intel Xeon Quad Core or compatible CPU @ 2.4GHz to 500 users or 14000 emails/day
  • Main memory: 4GB (to 250 users or 7000 emails/day); 6GB (to 500 users or 14000 emails/day)
  • Hard disk: 150MB of space required for installation. With more than 250 users it is advisable to use two disks, one for the operating system, program files and temporary files and another dedicated to archive information.

Supported operating systems

  • Microsoft Windows Vista SP2
  • Microsoft Windows 7 SP1
  • Microsoft Windows 8.1
  • Microsoft Windows 10
  • Microsoft Windows Server 2008 R2 SP1 and 2008 SP2 (Foundation, Standard, Enterprise, Datacenter)
  • Microsoft Windows Small Business Server 2008 SP2
  • Microsoft Windows Small Business Server 2011 SP1