New release v4.21.0

New features for the Outlook add-in

2025-08-15

🔗New features for the Outlook add-in

New launch events and custom code support:

  • React to launch events OnMessageRecipientsChanged and OnAppointmentAttendeesChanged.
  • Allow adding custom code to the add-in so you can directly influence which signature it will set.
    For example, you can set a specific signature…
    • …when there are only internal recipients, or another signature when there are external recipients
    • …depending on the from email address
    • …when a specific customer is in the To field
    • …when the current item is a mail or an appointment
    • …when the current item is a new mail, or another signature when it is a reply or a forward
    • …depending on the subject
    • …or any other condition derived from the information available in the customRulesProperties object

See .\sample code\CustomRulesCode.js in the Outlook add-in folder for details.

For a comprehensive list of all changes, dependencies, and fixes, please consult the official CHANGELOG.

🔗Interested in learning more or seeing our solution in action?

Contact us or explore further on our website. We look forward to getting to know you!

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