Hi
How to edit and adjust the guest pages and email is a bit of a jungle...
This specific line can either be a checkbox in the skin configuration where you have one box with the text and one checkbox with to enable or disable the copyright information


In addition to this you have a footer field on email template 
I think the text may be different depending on the version you are running
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Best Regards
Jonas Hammarbäck
MVP Guru, ACEX, ACDX #1600, ACCX #1335, ACX-Network Security
Aranya AB
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