templates/mail/auth/register_notify.tmpl

<!DOCTYPE html>
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="format-detection" content="telephone=no,date=no,address=no,email=no,url=no"/>
	<title>{{.i18n.Tr "mail.register_notify.title" (.DisplayName|DotEscape) AppName}}</title>
</head>

{{$set_pwd_url := printf "%[1]suser/forgot_password" AppUrl}}
<body>
	<p>{{.i18n.Tr "mail.hi_user_x" (.DisplayName|DotEscape) | Str2html}}</p><br>
	<p>{{.i18n.Tr "mail.register_notify.text_1" AppName}}</p><br>
	<p>{{.i18n.Tr "mail.register_notify.text_2" .Username}}</p><p><a href="{{AppUrl}}user/login">{{AppUrl}}user/login</a></p><br>
	<p>{{.i18n.Tr "mail.register_notify.text_3" ($set_pwd_url | Escape) | Str2html}}</p><br>

	<p>© <a target="_blank" rel="noopener noreferrer" href="{{AppUrl}}">{{AppName}}</a></p>
</body>
</html>