Disable Send button after clicking on it to avoid clicking it multiple times so that multiple emails are not sent.
Download the attached file and extract CustomScripts.js
Replace the CustomScripts.js file that exists under <ServiceDeskPlus MSP_home>/custom/scripts with the one attached and hard-refresh the browser to make the script effective.
Please make sure the CustomScripts.js which is already present in that folder is empty when you edit it. If that file already has some code, then append the code present in the attached file to the customer's file.
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