New release v4.20.0

Cross-tenant access and Multitenant Organizations

2025-06-18

🔗Cross-tenant access and Multitenant Organizations

The need for cross-tenant mailbox access—whether for a merger, acquisition, or complex organization—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.

🔗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.

🔗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.

🔗Improvements

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

🔗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.

🔗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.

🔗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

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🔗 Custom attributes and calculated data in email signatures

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Most of the data that appears in email signatures is already available in your directory service. First and last names, job titles, phone numbers, office locations, company names, and even reporting lines are typically part of Exchange, Active Directory, or Entra ID by default.

That works well as long as...

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🔗 Are You Missing Out on the Most Overlooked Marketing Channel?

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A communication channel that already exists but is rarely managed

Every organization sends emails. And every email includes a signature.

Sales conversations, support replies, project updates, quotations, follow‑ups — all of them leave your organization with a visual and textual impression attached. Yet in many companies, email signatures are still...

2026-03-18

🔗 Why build new infrastructure just to manage signatures?

Set-OutlookSignatures runs on your existing systems, does not bring new dependencies and does not transfer any data externally.

Many solutions require new servers, connectors, or email rerouting. Set-OutlookSignatures doesn’t:

Runs on your existing systems No new dependencies No external data transfers Simple, secure, and scalable, without the overhead.

This is made possible by architecture developed from practical experience for practical use, with a focus on work simplification and...