k-9/res/layout/message_list_item.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:paddingBottom="5dip"
    android:paddingRight="3dip"
    android:paddingTop="5dip" >

    <RelativeLayout
        android:id="@+id/checkbox_wrapper"
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:layout_alignParentLeft="true"
        android:textColor="?android:attr/textColorPrimary" >

        <CheckBox
            android:id="@+id/selected_checkbox"
            android:layout_width="36dip"
            android:layout_height="fill_parent"
            android:focusable="false"
            android:gravity="center_vertical|center"
            android:visibility="visible" />
    </RelativeLayout>

    <View
        android:id="@+id/chip"
        android:layout_width="16dip"
        android:layout_height="16dip"
        android:layout_alignParentTop="true"
        android:layout_alignWithParentIfMissing="true"
        android:layout_marginLeft="8dip"
        android:layout_marginRight="4dip"
        android:layout_marginTop="3dip"
        android:layout_toRightOf="@+id/checkbox_wrapper"
        android:background="@android:color/transparent" />

    <TextView
        android:id="@+id/subject"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_marginBottom="1dip"
        android:layout_marginLeft="1dip"
        android:layout_toLeftOf="@+id/date"
        android:layout_toRightOf="@+id/chip"
        android:ellipsize="marquee"
        android:singleLine="true"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textColor="?android:attr/textColorPrimary" />

    <TextView
        android:id="@+id/preview"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/chip"
        android:layout_below="@+id/subject"
        android:layout_marginLeft="1dip"
        android:layout_toLeftOf="@+id/flagged"
        android:bufferType="spannable"
        android:singleLine="false"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textColor="?android:attr/textColorPrimary" />

    <com.fsck.k9.view.ImageButtonAnchor
        android:id="@+id/item_menu"
        android:layout_width="36dp"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        android:background="@null"
        style="?android:attr/borderlessButtonStyle"
        android:src="?attr/iconListItemMenu" />

    <CheckBox
        android:id="@+id/flagged"
        style="?android:attr/starStyle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_toLeftOf="@+id/divider"
        android:focusable="false"
        android:gravity="top|right" />

    <TextView
        android:id="@+id/date"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/subject"
        android:layout_toLeftOf="@+id/divider"
        android:paddingLeft="5dip"
        android:singleLine="true"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textColor="?android:attr/textColorSecondary" />

    <ImageView
        android:id="@+id/divider"
          android:layout_width="1dip"
            android:layout_height="fill_parent"
            android:layout_alignParentTop="true"
            android:layout_alignParentBottom="true"
            android:layout_marginBottom="4dip"
            android:layout_marginTop="4dip"
            android:layout_centerHorizontal="true"
            android:layout_toLeftOf="@+id/item_menu"
        />

</RelativeLayout>