What can I learn from the code of Set-OutlookSignatures?

Set-OutlookSignatures is not just a tool for managing Outlook signatures and out-of-office replies.

2025-10-28

Set-OutlookSignatures is not just a tool for managing Outlook signatures and out-of-office replies. It is free and open-source because I want to give something back to the community that has helped me so often over the years.

The code is, of course, full of stuff related to getting reliable information about the current user and its manager from different sources, reading and interpreting the Outlook configuration from the registry, and automating Word for document manipulation. Thanks to open-source, you can have a look at it and actively help make it better.

Beside the big learning topics mentioned in the FAQ, the main and support files of Set-OutlookSignatures are sprinkled with small code snippets and comments you may find useful. Chances are good that you will stumble across some small gems of code by just browsing through it.

The following gives you an overview which other scripting techniques you can learn from Set-OutlookSignatures.

  • Active Directory group membership enumeration without compromises
  • Microsoft Graph authentication and re-authentication
  • Deploy and run software using desired state configuration (DSC)
  • Parallel code execution
  • Create desktop icons cross-platform
  • Create and configure apps in Entra ID, grant admin consent
  • Test Active Directory trusts
  • Start only if working Active Directory connection is available
  • Prohibit system sleep
  • Detect exit signals
  • Format phone numbers
  • Format postal addresses
  • Detect and convert string and file encodings, including HTML

You have found some lines of code that you can use for yourself? Great, that's exactly how it's meant to be. My pleasure!
One small ask: If you have a minute, please let me know which part of the code you were able to reuse.

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!

2026-04-08

๐Ÿ”— Custom attributes and calculated data in email signatures

Most of the information used in email signatures comes directly from your directory service. But what about the data that doesnโ€™t have a predefined field?

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...

2026-04-02

๐Ÿ”— Are You Missing Out on the Most Overlooked Marketing Channel?

Company email signatures are viewed thousands of times each day. Learn how they can be managed and used more effectively as a communication channel.

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, followโ€‘ups โ€” all of them leave your organization with a visual and textual impression attached. Yet in many companies, email signatures are still...

2026-03-18

๐Ÿ”— 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 doesnโ€™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...