how to change SDP URL in notification email

how to change SDP URL in notification email

Hello everybody
we have servicedesk plus and i  set this url as "https://itsm.mycompany.com/...." to login that in DNS and i can login in successfully.
but there is another url in notification email |(for example for approval stage of changes and requests).

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Your approval is required for a request to proceed with its execution. The details of the Request can be found at http://ServiceDesk:8080/......... 

Alternatively, you can reply to this email with your decision in the first line of the message. The request approval will be accordingly processed
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How do I change the login address in the default email text?

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