HCL Domino, formerly IBM Notes and Domino, is an on-premises mail, calendar and application server. Pages here cover moving Domino mail and calendar to self-hosted OX App Suite or grommunio.
For organizations keeping Domino applications but questioning Domino mail: OX App Suite's webmail, calendar and Drive on Kubernetes against Notes mail and calendar, standard protocols versus NRPC, and per-user CCB or Messaging Express licensing.
Moving Notes mailboxes, calendars and contacts to OX App Suite: extracting mail over IMAP and calendars in standard formats, directory changes when Domino Directory stops being the source, coexistence for free/busy, and cutover order.
For Domino sites whose users want Outlook afterwards: moving mail and calendars to grommunio with its MAPI/HTTP and EWS support, mapping groups to LDAP or Active Directory, and planning the Notes applications that stay behind.
Cost of ownership by component: CCB per-user entitlements that count admin and test IDs, perpetual Subscription and Support or term licenses, and Messaging Express for mail-only users, against OX App Suite or grommunio licensing, servers and migration.
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