Change Administrator's Name as it Appears in Auto-Response Emails

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I am making changes to our message templates to alter how our emails appear to customers.

Our current Thread Heading is:
[Entry Type] by [Channel] ([Author]) ([Entry Date])

 

When a ticket triggers an email response from rule, however, the Author is displayed as "Administrator," which sort of points out to our customers that a real agent has not looked at their ticket. 

Is there a way to edit how "Administrator" appears in these outgoing emails? I would just like to change it to a person's name.

 

Thanks!

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