The notification is not generating emails with html content when using mailto linksDescriptionWhen there is a notification, it can generate mailTo links following the next format:${mailto:TEMPLATE_NAME}Any possible HTML code aimed to be part of the body parameter of the mailTo link such as Bold and red colour will not honoured for emails when the end user clicks the link and then only text is displayed in the reply email. Requirement: <a href="mailto:me@me.com?subject=Me&body=<b>ME</b>">Mail me</a> Behaviour: <a href="mailto:me@me.com?subject=Me&body=ME">Mail me</a>CauseAs per definition according to the mailTo standard RFC, the mailto HTML tag to have the body was designed for a small plain text message only. The "body" field value is intended to contain the content for the first text/plain body part of the message. The "body" pseudo header field is primarily intended for the generation of short text messages for automatic processing (such as "subscribe" messages for mailing lists), not for general MIME bodies such as HTML tags <b>,<table>,<h1>) and css.ResolutionAs expected, this requirement will not work in any compliant browser such as Chrome, IE, Firefox, Edge, Safari, etc The only recommendation from ServiceNow perspective is just to add line breaks \n in when the body message needs many lines.Additional InformationFor external reference about mailTo, please refer to the link How to create mailto links For more information about MailTo as part of the RFC email standard, please visit https://www.rfc-editor.org/rfc/rfc6068 For additional reference about templates in ServiceNow, you can refer to our documentation page Email templates