diff --git a/webv4/pages/000-mail.xjs b/webv4/pages/000-mail.xjs
index bf0d9005003be1b204ecbc7d7c352a37cebfb67b..bfa12efe61eed95094fefc62f67800f6f5cd55c7 100644
--- a/webv4/pages/000-mail.xjs
+++ b/webv4/pages/000-mail.xjs
@@ -24,7 +24,7 @@
 			<div class="col-sm-11" style="cursor:pointer;" onclick="getMailBody(<? write(header.number); ?>)">
                 <? write(_mail_tab == 'sent' ? locale.strings.page_mail.label_message_to : locale.strings.page_mail.label_message_from); ?>:
                 <strong><? write(_mail_tab == 'sent' ? header.to : header.from); ?></strong>
-                <? if ((header.from_net_type != NET_NONE) && (typeof header.from_net_type !== "undefined")) { ?>
+                <? if (header.from_net_type != NET_NONE) { ?>
                     &lt;<? write(_mail_tab == 'sent' ? (header.to + '@' + header.to_net_addr) : (header.from + '@' + header.from_net_addr)); ?>&gt;
                 <? } ?>
 				<? write(locale.strings.page_mail.label_message_date); ?>