diff --git a/UI/Templates/MailerUI/UIxMailListView.wox b/UI/Templates/MailerUI/UIxMailListView.wox
index fd65c204a..a020c54ee 100644
--- a/UI/Templates/MailerUI/UIxMailListView.wox
+++ b/UI/Templates/MailerUI/UIxMailListView.wox
@@ -8,9 +8,9 @@
   xmlns:label="OGo:label">
   <thead>
     <tr class="tableview"
-      ><td class="tbtv_headercell messageFlagColumn sortableTableHeader"
+      ><td class="tbtv_headercell messageFlagColumn"
 	><var:entity const:name="nbsp" /></td
-	><td class="tbtv_headercell messageFlagColumn sortableTableHeader">
+	><td class="tbtv_headercell messageFlagColumn">
 	<img rsrc:src="title_attachment_14x14.png" width="14"
 	  height="14"/></td
 	><td class="tbtv_headercell sortableTableHeader" id="subjectHeader"
@@ -21,7 +21,7 @@
 	  ><var:if condition="showToAddress"
 	  ><var:string label:value="To"/></var:if
 	  ></td
-	><td class="tbtv_headercell sortableTableHeader" id="messageFlagHeader"
+	><td class="tbtv_headercell" id="messageFlagHeader"
 	><img rsrc:src="title_read_14x14.png"/></td
 	><td class="tbtv_headercell sortableTableHeader" id="dateHeader"
 	><var:string label:value="Date"/></td