Master Outlook signatures

Tips, tools, and trends for IT and marketing teams

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...

2025-07-17

🔗 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...

2025-07-15

🔗 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...

2025-07-08

🔗 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...

2025-06-26

🔗 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...

2026-04-15

🔗 Still using VBS scripts to deploy email signatures? Level up now!

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

VBScript has been officially marked as deprecated by Microsoft. It’s no longer a question of if your legacy signature scripts will stop working, but when.

As Microsoft begins the multi-phase retirement of VBScript in Windows, IT departments still relying on .vbs files for Outlook signatures are sitting on a ticking...

2026-04-08

🔗 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 doesn’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

🔗 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, follow‑ups — all of them leave your organization with a visual and textual impression attached. Yet in many companies, email signatures are still...