Change Welcome email signature

When someone registers for our forum, they get a welcome email. Is there any way we can change the wording at the bottom? Where it has name (that we would like to change). It appears at the end of the Welcome message.

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"Please do not forget your password as it has been encrypted in our database: we cannot retrieve it for you. However, if you forget your password, you can request a new one to an Administrator.

Thank you for registering."
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This House <<<<<

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We would like to change "This House" at the bottom (signaure?) to "This House2 Forum"

Hello tomdavid,

You should be able to change it here :
Administration Panel > General > Messages and emails > emails and contact form

Edit the content of "Email signature"

Thank you.