diff --git a/ui/src/components/mail/listing/plain.rs b/ui/src/components/mail/listing/plain.rs
index 8e323882..8c2638a1 100644
--- a/ui/src/components/mail/listing/plain.rs
+++ b/ui/src/components/mail/listing/plain.rs
@@ -252,17 +252,19 @@ impl ListingTrait for PlainListing {
             let remainder = width
                 .saturating_sub(self.data_columns.widths[0])
                 .saturating_sub(self.data_columns.widths[1])
-                - 4;
+                .saturating_sub(4);
             self.data_columns.widths[2] = remainder / 6;
-            self.data_columns.widths[4] = (2 * remainder) / 3 - self.data_columns.widths[3];
+            self.data_columns.widths[4] =
+                ((2 * remainder) / 3).saturating_sub(self.data_columns.widths[3]);
         } else {
             let remainder = width
                 .saturating_sub(self.data_columns.widths[0])
                 .saturating_sub(self.data_columns.widths[1])
                 .saturating_sub(8);
             if min_col_width + self.data_columns.widths[4] > remainder {
-                self.data_columns.widths[4] =
-                    remainder - min_col_width - self.data_columns.widths[3];
+                self.data_columns.widths[4] = remainder
+                    .saturating_sub(min_col_width)
+                    .saturating_sub(self.data_columns.widths[3]);
                 self.data_columns.widths[2] = min_col_width;
             }
         }
diff --git a/ui/src/terminal/cells.rs b/ui/src/terminal/cells.rs
index 639d8623..8bbf47ac 100644
--- a/ui/src/terminal/cells.rs
+++ b/ui/src/terminal/cells.rs
@@ -363,10 +363,10 @@ impl CellBuffer {
     pub fn bounds_iter(&self, area: Area) -> BoundsIterator {
         BoundsIterator {
             rows: std::cmp::min(self.rows.saturating_sub(1), get_y(upper_left!(area)))
-                ..(std::cmp::min(self.rows, get_y(bottom_right!(area))) + 1),
+                ..(std::cmp::min(self.rows, get_y(bottom_right!(area)) + 1)),
             cols: (
                 std::cmp::min(self.cols.saturating_sub(1), get_x(upper_left!(area))),
-                std::cmp::min(self.cols.saturating_sub(1), get_x(bottom_right!(area))),
+                std::cmp::min(self.cols, get_x(bottom_right!(area)) + 1),
             ),
         }
     }
@@ -1043,9 +1043,9 @@ pub fn clear_area(grid: &mut CellBuffer, area: Area) {
     }
     let upper_left = upper_left!(area);
     let bottom_right = bottom_right!(area);
-    for y in get_y(upper_left)..=get_y(bottom_right) {
-        for x in get_x(upper_left)..=get_x(bottom_right) {
-            grid[(x, y)] = Cell::default();
+    for row in grid.bounds_iter(area) {
+        for c in row {
+            grid[c] = Cell::default();
         }
     }
 }
@@ -1325,7 +1325,7 @@ impl Iterator for BoundsIterator {
         if let Some(next_row) = self.rows.next() {
             Some(RowIterator {
                 row: next_row,
-                col: self.cols.0..(self.cols.1 + 1),
+                col: self.cols.0..self.cols.1,
             })
         } else {
             None