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EXOM is a high-performance tool (PowerShell module) for consultants and administrators. Its purpose is to assist you in migrating mailboxes between Exchange on-premises organizations and Exchange Online (Office 365). In doing so, INTELLITY EXOM exceeds the usual range of Microsoft standard tools and procedures by far!
Alongside a carefully planned and monitored migration of mailboxes, we are also able to offer you extensive reporting.
By request, the entire process can be accomplished before launching the migration.


  •  Facilitated creation of migration batches by use of single selection or *.CSV files
  •  Automatized assignment of licenses based on Active Directory Groups
  •  Backup of mailbox authorizations
  •  Detailed Reporting for management staff, administrators, and/or end-users
  •  Detailed and adaptable “Pre-Migration” checks and reports
  • Checks for invalid UPNs
  • Verification of e-mail addresses with the option of removing invalid addresses (e.g. ”.local”)
  • Adoption of mailbox forwarding (Forwarding Address und Forwarding SMTP Address)
  • Adoption of regional mailbox settings (Mailbox Regional Configuration)
  • Elimination of mailbox authorizations via security groups and explicit configuration of authorization on mailbox level
  • Adaptable “Post-Migration” tasks after migrating the mailboxes
  • Activating Exchange Online Archive
  • Establishing Mailbox Quota
  • Activation/ Deactivation of mailbox features, such as POP3, IMAP, OWA, EAS, etc.
Communication is key – here is what EXOM will do for you out of the box.
  • At a defined time prior to migration, EXOM sends an e-mail to the users with all the relevant project information
  • EXOM notifies the user about planned migration dates
  • EXOM notifies the user about migration date changes
  • EXOM notifies the user about successful or failed migration
  • EXOM sends information to the users about the next steps
Start the migration faster. EXOM will clean up your environment to ensure your migration runs smoothly.
  • Start multiple migrations with a PowerShell one-liner
  • Automated Office 365 license assignment
  • Backup mailbox, mailbox folder and Active Directory permissions
  • Pre-migration validation ensures that your mailboxes get migrated successfully
  • Remove unwanted SMTP addresses before migration
  • Resolve security groups so that your permissions get migrated even if you do not sync the whole directory
  • Configure post-migration tasks. Enable an archive for every mailbox after migration or activate/deactivate some mailbox features.
Reporting matters – EXOM ensures that you stay informed about anything at any time
  • Success and error reporting
  • Detailed migration statistics
  • Configuration recommendations
  • Special reports for managers and admins
Unlock your users for self-migration and let them migrate their mailbox by themselves. EXOM offers different possibilities for self-migration. Here are some examples of how our customers use the self-migration module.
  • Migrate with just one click on a button in an e-mail
  • Let your project managers migrate using a SharePoint list
  • Multi forest & single tenant? Let your forest admins migrate without giving them permissions in Exchange Online.
EXOM is flexible and can be easily adapted to your requirements.