New release v4.20.0

Cross-tenant access and Multitenant Organizations

2025-06-18

๐Ÿ”—Cross-tenant access and Multitenant Organizations

The need for cross-tenant mailbox accessโ€”whether for a merger, acquisition, or complex organizationโ€”breaks most traditional signature solutions. Why? Because their architecture simply can't handle it. Set-OutlookSignatures solves this. Rleease v4.20.0 introduces full cross-tenant support that works seamlessly.

๐Ÿ”—Encoding detection

Ever since IT came into existence, encoding has been a necessary but annoying topic. Modern systems can handle around 140 different encodings. Unicode is not a universal solution, as at least six different variants are used.

Set-OutlookSignatures now comes bundled with UTF.Unknown for encoding detection. A ready-to-reuse function not only makes encoding detection a breeze, but also encoding conversion, and even takes into consideration HTML specifics.

๐Ÿ”—New Features

  • Support for cross-tenant access and Multitenant Organizations.
  • Automatic HTML encoding detection and UTF-8 conversion.
  • Customizable notification text in the Outlook add-in.

๐Ÿ”—Improvements

  • Reduced Entra ID throttling with optimized token refresh logic.
  • Completely rewritten Quickstart guide.
  • Verbose output now shows all replacement variables.

๐Ÿ”—Fixes

  • DOCX templates no longer open in Read view.
  • Correct handling of HTML templates with multiple image references.
  • Support for Outlook profile names with special characters.

๐Ÿ”—Updated dependencies

  • MSAL.Net 4.73.0, PreMailer.Net 2.7.0, HtmlAgilityPack 1.12.1, QRCoder 1.6.0.

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

๐Ÿ”—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!

new release

 

2026-05-19

๐Ÿ”— Goodbye Rollout Panic: How to Test Outlook Signatures & Out-of-Office Notes Without Accessing Live Mailboxes

Worried about broken templates or overwriting VIP replies? Discover how to use simulation mode to validate signature and OOF logic against real data with zero risk to end users.

2026-05-06

๐Ÿ”— Out-of-office replies or autoresponder rules: Which is the better choice?

At first glance, the choice seems obvious. But on closer inspection, important differences emerge that may change your perspective.

2026-05-01

๐Ÿ”— Set-OutlookSignatures v4.27.0: Configure faster with the new INI Editor and ship with stronger diagnostics

Set-OutlookSignatures v4.27.0 introduces a new graphical INI editor, improved Entra ID permission guidance, and practical runtime diagnostics for power mode and battery. The Benefactor Circle add-on and Outlook add-in also gain important robustness improvements, especially for multi-mailbox scenarios and cloud hosting detection.

2026-04-22

๐Ÿ”— Designing signatures for dark mode

The shift to Dark Mode has dramatically improved screen comfort for millions, but itโ€™s introduced a major headache for email signature designers.

2026-04-15

๐Ÿ”— Still using VBS scripts to deploy email signatures? Level up now!

VBScript is officially deprecated by Microsoft. Don't just rewrite your codeโ€”modernize your entire signature deployment strategy with a future-proof framework.