As I mentioned in my previous blog post, it’s IBM’s vision to provide an open Client strategy, one of those clients is certainly MS Outlook.


A lot of the customers are moving to O365 because they like the Outlook client, unfortunately they don’t think about the effort to migrate and not to mention the financial effort.

In a lot of cases I’m wondering if the juice is worth the effort of squeezing   🙂 They think by moving away they will save money, but with all struggles they encounter during the project, it results in more money being spent or wasted then being saved.

IBM mail support for MS Outlook helps IBM Notes/Domino customers create more engaged employees, avoid rip-and-replace costs and preserves value of existing IT, by allowing users to decide which email client works best for them, Outlook or Notes and this against their existing, powerful and reliable Domino Server.

Who’s entitled to use IMSMO ?

This is a rather simple question, every customer who has valid Domino CAL’s or Collaboration Express licenses.Dual Entitlement customers and Connections Cloud S1 or SmartCloud Notes customers have also the right to connect with MS Outlook to a Domino Server.

Supported versions of Outlook are 2010, 2013 and 2016. Currently there is only support for the Windows versions but Outlook for Mac and Apple Mail are under investigation.

The most current version is IMSMO 2.0 Fix Pack 2, you can find the information here:

What are the capabilities of the client ?

Outlook capabilities that are available in an Outlook/Exchange world are also possible in an Outlook/Domino world. Hereby a summary of the capabilities:

Mail Calendar Client-wide
–  Compose

–  Send/Receive

–  Draft sync

–  Quota indication

–  Summary Sync

–  Folder support

– Notes encryption

– Free/busy lookup

– Room finder

–  Search

–  Automatic client updates

–  Automatic Send/Receive on network connection

–  Offline support

–  OoO Support

If you install IMSMO on premise, you need to think about the following guidelines before you get started with the installation:

  • Domino 9.0.1 or higher and ID Vault are required
  • Outlook users must have a replica on the IMSMO servers or you can install IMSMO on the mail server in a small deployment
  • You can’t mix Notes Traveler and IMSMO on the same Domino Server
  • Use DB2 to store the sync data or when you want to provide HA, in a small environment you can use the internal derby database
  • Use a proper SSL Certificate instead of self-signed one

As you can see on this slide, IBM decided to use SyncML instead of Exchange ActiveSync because it gives more control over the connection and functionality.


Here you can find some extra IMSMO slides

If you want to know more about the administration, check this guide