How to remove word "OPERATION" from templates

How to remove word "OPERATION" from templates

We updated from a rather old version and now I notice that in a lot of notification emails the word OPERATION (see Yellow marked below) is added at the beginning.
However I do not see that in the template(s).

Where is this added and how can I remove it again?

Thanks


Van: IT [mailto:xx@santander.nl]
Verzonden: woensdag 20 april 2016 10:52
Aan: xxxxxx
Onderwerp: Ticket ID: ##TT-9662## Added to IT Systems. Subject: trests

OPERATION: Title/Subject: tests
Priority and type (Request or Incident): Request P5 - Normal
Due by time: 18/05/2016 10:52 AM

Requester: Verduijn, Lukas
Category: AS400
Subcategory: Other
Item:

Description: test



Click for details : http://support.santander.nl/WorkOrder.do?woMode=viewWO&woID=9662

Note: This is an automated mail. Do not reply to this mail.

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