Archive: 2025
2025-06-18
🔗 New release v4.20.0
Cross-tenant access and Multitenant Organizations
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,...
2025-06-26
🔗 New hotfix release v4.20.1
Corrections for cleaning up signatures
Corrections for cleaning up signatures
This hotfix resolves issues with the parameters DeleteScriptCreatedSignaturesWithoutTemplate and DeleteUserCreatedSignatures.
While DeleteScriptCreatedSignaturesWithoutTemplate did not delete obsolete signatures, the same error in the code caused DeleteUserCreatedSignatures (disabled by default) to delete even non-user signatures.
A comprehensive list of all changes, dependencies, and bug fixes can be...
2025-07-08
🔗 New hotfix release v4.20.2
Update handling of the '@' character in signatures names
Update handling of the '@' character in signatures names
Microsoft no longer allows '@' in roaming signature names as it is reserved for internal use, and Microsoft Outlook will follow soon.
This hotfix addresses this change as follws:
Add '@' to the list of invalid characters for signatures names as...
2025-07-15
🔗 Why does text sometimes turn blue instead of staying black?
Ever noticed your email signature text mysteriously changing color, especially in replies or forwards?
Ever noticed your email signature text mysteriously changing color, especially in replies or forwards?
Here's what's going on: By default, Outlook uses black text for new emails and blue text for replies and forwards. These defaults also apply to signatures - sometimes by design, sometimes by surprise.
There are two...
2025-07-17
🔗 New hotfix release v4.20.3
Fixes for PowerShell quirks and SimulateAndDeploy
Fixes for PowerShell quirks and SimulateAndDeploy
Add a workaround for PowerShell 5.1 not correctly converting arrays to JSON when passing them via the InputObject parameter. (#136) Fix Set-OutlookSignatures quitting with exit code 14 when using it in SimulateAndDeploy mode for Exchange Online. Add a workaround for PowerShell not reliably resolving...
2025-08-11
🔗 Centralized signature management: Cost center or opportunity?
Many assume that managing email signatures only makes sense for large enterprises
Many assume that managing email signatures only makes sense for large enterprises
But the numbers tell a different story.
Let's break it down:
Average employee cost: EUR 0.55 per minute (based on EUR 60,000 per year for 1,800 hours) 1 device, 2 signatures 2 updates per year 3 minutes per...
2025-08-12
🔗 New hotfix release v4.20.4
Addressing changes in Microsofts roaming signatures API
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...
2025-08-15
🔗 New release v4.21.0
New features for the Outlook add-in
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...
2025-08-19
🔗 Signatures for Send As and Send on Behalf
You want to assign signatures to mailboxes or distribution lists that users don't add to Outlook?
How do you deploy signatures for Send As and Send on Behalf scenarios?
You want to assign signatures to mailboxes or distribution lists that users don't add to Outlook, but use by selecting a different "From" address with Send As or Send on Behalf rights?
With Set-OutlookSignatures, this is straightforward...
2025-09-05
🔗 New release v4.22.0
More Outlook add-in customization
More Outlook add-in customization
The v4.22.0 release brings major changes and customization features to the Outlook add-in:
Custom rules can now set a completely customized signature body using the new customRulesResultSignatureBody property, available for Exchange Online. Added graphAccessToken and graphApiEndpoint properties to custom rules, allowing direct querying of the Graph...
2025-09-07
🔗 Roaming Signatures for Outlook for Mac?
Do you have users accessing Exchange Online mailboxes with Outlook for Mac?
We've got you covered
Do you have users accessing Exchange Online mailboxes with Outlook for Mac? Then you'll want to hear this.
With Set-OutlookSignatures and the Benefactor Circle add-on, you can centrally manage and deploy email signatures and out-of-office replies, also for Outlook for Mac.
Here's the catch: Classic and...
2025-09-15
🔗 DOCX or HTML?
The signature template choice that actually matters
The signature template choice that actually matters
Most solutions lock you into a proprietary HTML editor. But at Set-OutlookSignatures, we believe in giving you the freedom to choose.
That's why we support both HTML and DOCX templates, because flexibility should never be a compromise.
So why do most of our...
2025-09-22
🔗 Beware the Forgotten Signature 👻🎃
Your email signature might seem harmless, but when left unchanged, it can become a ghost of missed opportunities.
Your email signature might seem harmless…
…but when left unchanged, it can become a ghost of missed opportunities.
This spooky season, turn your sign-off into a spellbinding marketing tool. With Set-OutlookSignatures, you can conjure up time-based, seasonal, and campaign-driven signatures that rotate like magic. No broomstick required.
Schedule templates for:
...
2025-10-07
🔗 Email signatures without end user interaction or client-side software
In some environments, running client-based tools just isn't an option
In some environments, running client-based tools just isn't an option
This is often the case with Microsoft 365 F licenses or Bring-Your-Own-Device (BYOD) setups.
That's where Set-OutlookSignatures steps in—with a powerful built-in feature: SimulateAndDeploy
With SimulateAndDeploy, you can roll out email signatures and out-of-office replies:
Without any user interaction Without...
2025-10-14
🔗 Randomly alternate banners and other images
Running a marketing campaign with multiple banners?
Running a marketing campaign with multiple banners?
Rotating them manually across your team's signatures is nearly impossible and definitely not scalable.
With Set-OutlookSignatures, you can automate banner rotation effortlessly, using flexible conditions tailored to your needs.
Whether you want to:
Randomly rotate banners to avoid viewer fatigue Show specific banners...
2025-10-18
🔗 New release v4.23.0
Formatting address and phone number made easy
Goodbye formatting headaches with addresses and phone numbers, hello global standards
Set-OutlookSignatures v4.23.0 is here, delivering a major upgrade focused on two common - and surprisingly complex - pain points in global IT: Perfectly formatting phone numbers and postal addresses.
This release integrates world-class open-source libraries to ensure your organization's...
2025-10-20
🔗 Current state and future of roaming signatures
When Microsoft announced roaming signatures back in 2020, it sounded like a game-changer.
A game changer with a downside
When Microsoft announced roaming signatures back in 2020, it sounded like a game-changer. No more local signature storage. A consistent experience across devices. And finally, a solution to the one-signature limitation in on-prem Outlook for the web.
That was the theory.
Fast forward to...
2025-10-28
🔗 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.
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...
2025-11-04
🔗 How to deploy a signature only once – and a clever alternative
Sometimes, you want to deploy a signature only once, allow the user to personalize it, and never overwrite it again.
Signature management solutions like Set-OutlookSignatures are designed to reduce user errors, simplify updates, and empower IT and marketing teams to manage signatures efficiently.
Sometimes, you want to deploy a signature only once, allow the user to personalize it, and never overwrite it again.
There are three ways to achive this...
2025-11-12
🔗 Why is Out Of Office abbreviated as OOF and not OOO?
Let's rewind to the 1980s. Back then, Microsoft Xenix was the leading Unix OS…
It's one of those quirks that makes you pause: Why do we say OOF instead of OOO?
Let's rewind to the 1980s. Back then, Microsoft Xenix was the leading Unix OS - yes, really! - and Microsoft itself was running its own mail system on it. This system had a...
2025-11-19
🔗 Detect and convert encodings
ConvertEncoding enables reliable detection and conversion of encodings.
The history of encoding began long before IT. Even the first alphabets were attempts to translate spoken language into visual symbols. Whether cuneiform, hieroglyphics, or the Latin alphabet, every culture developed its own systems for encoding information and preserving it across time and space.
With the advent of computers, encoding...
2025-11-26
🔗 New release v4.24.0
Easy account picture integration, launchevent control and more
Intuitive account picture integration in DOCX templates
Adding user photos to your DOCX signature templates is now significantly simpler.
You can now insert an account picture by simply adding a shape to your DOCX template, positioning it "inline with text," and setting the picture replacement variable (e.g., '$CurrentUserPhoto$') in the...
2025-12-03
🔗 Barrier-free email signatures and out-of-office replies
Accessibility isn’t just a trend, it’s a responsibility.
More organizations are recognizing the importance of making their communication inclusive and barrier-free.
Around 2.4% of adults worldwide use screen readers due to visual impairment.
Accessibility benefits approximately 1.3 billion people with disabilities, plus their families and caregivers.
But accessability is an ubiquitous demand that is not bound to a...
2025-12-10
🔗 Azure DevOps for Set-OutlookSignatures
How AIMTEC has implemented a robust, automated, and dynamic signature management solution using Azure DevOps to work seamlessly with Set-OutlookSignatures.
Hello to the Set-OutlookSignatures community!
My name is Jiří Hrabák, I am an ICT Senior Consultant at AIMTEC a. s.. AIMTEC provides digitalisation, automation, and IT solutions—covering systems like SAP, advanced planning, and end-to-end logistics management.
I'm excited to share how we've implemented a robust, automated, and dynamic signature management...
2025-12-22
🔗 New release v4.25.0
Critical update for Exchange Online and Benefactor Circle users. New signature marking, short variable names, and improved Graph API resilience.
Benefactor Circle add-on users with mailboxes in Exchange Online should update to this version as soon as possible. Microsoft will begin changing roaming signature HTML processing shortly. Update as soon as possible to avoid potential negative impact on the parameters DeleteScriptCreatedSignaturesWithoutTemplate and DeleteUserCreatedSignatures.
Streamlined signature design with shorter variables
Designing...