Customise email type "mailing_list"


Our users have requested that the email prefix was removed from the subject line of certain types of emails. Although I have found most of them in email templates, the type mailing_list still has the prefix in there and it doesn’t appear to be in the list of templates.

Does anyone know of a way to modify the subject line of this email type?

Thanks very much in advance


I’ve found it is possible to edit the subject line for generic emails such as this one like so:

I’ve changed the email subject to:

This results in a peculiar subject title:
[[Category] ] Topic

I think the extra square brackets are for the subcategory but we don’t use them. Does anyone know how to set up a subject title without these extra square brackets?