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What’s New in MailStore Cloud

MailStore Cloud 26.1.1

02/04/2026

  • FixedThe folder tree view in the Web Access is not displayed when a user has access to an archive mailbox both directly and via a group membership.

MailStore Cloud 26.1

01/21/2026

  • NewArchived e-mails can be forwarded as attachment to an e-mail from the Web Access. A MS365 mailbox needs to be configured as sender.
  • NewArchiving from mailboxes can be limited to mails of a certain age, to e.g. exclude mails older than 10 years.
  • ImprovedImproved the scalability of MailStore Cloud.
  • ImprovedThe folder tree in the Web Access is displayed faster.
  • ImprovedThe experience in the MS365 setup wizard was improved.
  • ImprovedImproved handling in case MS365 is temporarily unavailable.
  • ImprovedPassword change dialog was enhanced and users are logged out after a password change.
  • ImprovedUpdated internal components.
  • ImprovedUpdated 3rd party services.
  • FixedIndexing mails fails when headers are broken.
  • FixedMails with certain encodings cannot be archived or imported.
  • FixedRetrieving mail information from large folders via IMAP might fail due to restrictive settings of the mail server.
  • FixedDirectory sync from MS365 might fail for users with an email address but no mailbox.
  • FixedMS365 users can not be identified by different mail address than the UPN.
  • FixedUser and group synchronization from Google Workspace fails with empty groups.
  • FixedMultiple import folder synchronizations may run at the same time.
  • FixedLong attachments lists are not properly displayed in the Web Access.
  • FixedAdvanced search UI may scroll out of sight on mobile devices.
  • FixedDesign fixes for the login dialog.

MailStore Cloud 25.4.1

03/11/2025

  • ImprovedSchedules for the same archiving or folder synchronization profile will no longer run in parallel. Overlapping schedules will be skipped.
  • FixedWhen displayed in German, the Admin Access does not show the cancel or save button in the dialog for editing or creating users.

MailStore Cloud 25.4

08/10/2025

  • NewMail archives from MailStore Server, SPE and Home can be migrated to MailStore Cloud in bulk.
  • NewUsers must change their password on first login and after their password was reset by administrators.
  • NewThe clear-text copy of IRM-protected messages from MS365 journal reports is now indexed and displayed, if available.
  • NewUser permissions and group memberships are now displayed in the user dialog in the admin access.
  • ImprovedAccessibility of web access and admin access is improved through better contrasts and keyboard navigation.
  • ImprovedThe message source of an email can now be copied from the web access.
  • ImprovedUpdated internal 3rd party components and libraries.
  • ImprovedExtended audit logging in import and export functionality.
  • ImprovedFiles uploaded for bulk import are now automatically deleted 7 days after their upload.
  • ImprovedArchiving from Exchange Server mailboxes now supports NTLM.
  • FixedFiles with extensions other than .eml or .msg are ignored during bulk import.
  • FixedWhen printing an email, the folder path is now properly included in the printout.
  • FixedSeveral smaller fixes to admin access UI.

MailStore Cloud 25.3

14/07/2025

  • NewSetting up directory service sync, archiving and folder synchronization with Microsoft 365 / Entra ID now makes use of a public app.
  • NewSetup Wizard for customers who use Microsoft 365 / Entra ID, that aids in setting up directory service sync, journal archiving, initial mailbox archiving and folder synchronization.
  • NewSetup Wizard for customers who want to archive single IMAP mailboxes, that aids in setting up mailbox archiving and folder synchronization.
  • NewMails from external 3rd party sources can now be imported in bulk by uploading ZIP files via SFTP.
  • ImprovedThe dashboard in the Admin Access was enhanced to provide more information, e.g. about the license or archive statistics, using an Improvedroved UI.
  • ImprovedThe directory service synchronization with Microsoft 365 now supports synchronizing username changes. (One initial synchronization without changes needed after the update.)
  • ImprovedThe directory service synchronization with Microsoft 365 now supports group mailboxes.
  • ImprovedThe directory service synchronization with and archiving from Microsoft 365 now supports shared mailboxes.
  • ImprovedThe search function for the audit log now supports complex search criteria.
  • ImprovedIDs of entities (like configurations, mailboxes, etc.) are clickable to easily display the entity.
  • ImprovedDuring folder synchronization flagged or unread e-mails can be deleted from the source mailbox (opt-in).
  • ImprovedPrivate key details for Google Workspace can now be Improvedorted from a JSON file.
  • ImprovedSearch fields can now be cleared more easily.
  • ImprovedUpdated 3rd party libraries.
  • ImprovedUpdate several internals of Web Access and Admin Access.
  • ImprovedRestrict TLS versions to minimum 1.2.
  • FixedRemoved unused functionality.