com/templates/admin/auth/source/smtp.tmpl

<div class="smtp field {{if not (eq .type 3)}}hide{{end}}">
	<div class="inline required field">
		<label>{{.i18n.Tr "admin.auths.smtp_auth"}}</label>
		<div class="ui selection type dropdown">
			<input type="hidden" id="smtp_auth" name="smtp_auth" value="{{.smtp_auth}}">
			<div class="text">{{.smtp_auth}}</div>
			<i class="dropdown icon"></i>
			<div class="menu">
				{{range .SMTPAuths}}
					<div class="item" data-value="{{.}}">{{.}}</div>
				{{end}}
			</div>
		</div>
	</div>
	<div class="required field">
		<label for="smtp_host">{{.i18n.Tr "admin.auths.smtphost"}}</label>
		<input id="smtp_host" name="smtp_host" value="{{.smtp_host}}">
	</div>
	<div class="required field">
		<label for="smtp_port">{{.i18n.Tr "admin.auths.smtpport"}}</label>
		<input id="smtp_port" name="smtp_port" value="{{.smtp_port}}">
	</div>
	<div class="field">
		<label for="allowed_domains">{{.i18n.Tr "admin.auths.allowed_domains"}}</label>
		<input id="allowed_domains" name="allowed_domains" value="{{.allowed_domains}}">
		<p class="help">{{.i18n.Tr "admin.auths.allowed_domains_helper"}}</p>
	</div>
</div>