New hotfix release v4.20.4

Addressing changes in Microsofts roaming signatures API

2025-08-12

🔗Addressing changes in Microsofts roaming signatures API

  • Add workaround for Microsoft internal problems with roaming signatures API, which would result in the following error when uploading roaming signatures to mailboxes which are not the one of the logged-on user (especially in SimulateAndDeploy mode). The log would contain the error 'The response status code for https://localhost:444/owa/service.svc?action=SanitizeHtml action \u0027SanitizeHtml\u0027 is InternalServerError. ReasonPhrase:Internal Server Error'.
  • Add hints about probable root causes of empty signatures lists in the log output of the Outlook add-in.

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

🔗Set-OutlookSignatures centralizes email signatures and out-of-office replies across every Outlook platform

Consistent branding for Marketing, centralized control for IT, and zero manual effort for employees. Sovereign by design, it keeps data within systems you already trust.

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new release

 

2026-10-08

🔗 Smarter Replies, Forwards, and Alias Signatures in v4.32.0

Set-OutlookSignatures v4.32.0 introduces smarter signature selection for first replies, forwarded messages, aliases, and secondary SMTP addresses.

2026-10-07

🔗 Deploy Outlook signatures for users who do not log on to managed devices

Centrally deploy Outlook signatures for F-license, BYOD, mobile-only, shared-device, and Outlook for the web users.

2026-09-30

🔗 Self-service email signature attributes with data sovereignty

Let users personalize email signatures while IT retains control and all data stays inside systems your organization already trusts.