Master Outlook Signatures

Tips, tools, and trends for IT and marketing teams

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...

2025-08-12

🔗 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...

2025-08-11

🔗 Manual email signatures cost more than you think

A simple business case shows why Set-OutlookSignatures with the Benefactor Circle add-on pays off from day one.

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

🔗 Stop Outlook Signatures Turning Blue in Replies

Outlook can recolour signature text in replies. Learn why Automatic font colour causes it and how to keep branding consistent.