Relevant Products: Exclaimer Cloud - Signatures for Office 365 | Exclaimer Cloud - Signatures for G Suite
Query
You notice that when designing signatures in the Signature Designer, previews are shown for a test user (example: Karen Green) unless the example user is changed using the drop-down.
Answer
When you use the Signature Rules Tester, the matched signatures are populated with data for whichever user you have chosen to run the test with.
For example: