System requirements

This topic describes the server requirements for IBM® mail support for Microsoft Outlook (IMSMO).

System requirements

As of Domino 10, the server components required for IMSMO are installed with the Domino server. Installing the IBM mail server add-on (IMSA) is no longer necessary.

For detailed system requirements, see the Domino and Traveler system requirements.

For information on installing and configuring Traveler, see Administering IBM Traveler.

Server configuration settings

  • $CSUID2APPTUNIDCONTROL=4 - This INI setting impacts the home mail server, i.e., the server where mail gets delivered, even if that is not the Traveler server.
    • Recommended - The setting is recommended if all servers in the same cluster of the home server are running Domino® release 9.0.1 or higher. If all servers are not running Domino® release 9.0.1 or higher, there is a remote potential to have rescheduled calendar entries from external, non-Notes® meeting organizers appear as invitations. This happens if the original invitation arrives on a 9.0.1 server, and the reschedule notice is delivered to a server earlier than Domino® 9.0.1, for example due to failover.
    • Required - This INI setting is required on your home server, to ensure successful interoperability with external organizers, especially in cases where there are both AIX® and non-AIX® servers involved - for example, when an AIX® server is the home server, and there is a Windows server that services IBM® Mail support for Microsoft Outlook. In such a scenario, counter proposals to external organizers will not work from Outlook.

  • HTTP will be enabled on first launch after Traveler server installation, if it was not already enabled
  • For larger deployments IBM® recommends increasing both the Cached user expiration interval and Maximum cached users values, which can be found in the server document (Internet Protocols > Domino Web Engine). Set Cached user expiration interval to 28800 seconds (8 hours); for Maximum cached users, please set to the number of users that are expected to be using this Traveler server.

Server settings - user access

Note: IMSMO users must be in the same domain as the Traveler mail server.
Each IMSMO user who accesses the Traveler server must have:
  • A mail replica on the Traveler server.
  • A valid internet address, set in the user's person document
  • A valid internet password, set in the user's person document (only required if you will be using Domino® authentication)
  • The user's Notes® ID must be in an ID Vault.