Adding custom headers to emails generated from ServiceNowSummaryIn some cases there maybe a need to add a custom header to emails generated from ServiceNow platform. This can be achieved via business rules.InstructionsTo add custom header, do the following: Create a business rule on the sys_email table ("on before", "insert/update") The script is below. It is important to put your headers BEFORE ServiceNow headers.If you simply append your headers, they will be cut off./* add headers */if(current.headers.indexOf("X-My-Header-Here") < 0){ current.headers = "X-My-Header-Here: " + headerValue + "\n" + current.headers;}