diff --git a/emailcommon/src/com/android/emailcommon/provider/EmailContent.java b/emailcommon/src/com/android/emailcommon/provider/EmailContent.java
index 09cb3493a..b16a67a0a 100644
--- a/emailcommon/src/com/android/emailcommon/provider/EmailContent.java
+++ b/emailcommon/src/com/android/emailcommon/provider/EmailContent.java
@@ -2291,8 +2291,10 @@ public abstract class EmailContent {
         public static final String SYNC_STATUS = "syncStatus";
         // Number of messages in the mailbox.
         public static final String MESSAGE_COUNT = "messageCount";
-        // Number of messages in the mailbox.
+        // Message ID of the last 'seen' message
         public static final String LAST_SEEN_MESSAGE_KEY = "lastSeenMessageKey";
+        // The last time a message in this mailbox has been read (in millis)
+        public static final String LAST_TOUCHED_TIME = "lastTouchedTime";
     }
 
     public interface HostAuthColumns {
diff --git a/emailcommon/src/com/android/emailcommon/provider/Mailbox.java b/emailcommon/src/com/android/emailcommon/provider/Mailbox.java
index 3e007014a..98d3f4dfe 100644
--- a/emailcommon/src/com/android/emailcommon/provider/Mailbox.java
+++ b/emailcommon/src/com/android/emailcommon/provider/Mailbox.java
@@ -54,6 +54,7 @@ public class Mailbox extends EmailContent implements SyncColumns, MailboxColumns
     public int mVisibleLimit;
     public String mSyncStatus;
     public long mLastSeenMessageKey;
+    public long mLastTouchedTime;
 
     public static final int CONTENT_ID_COLUMN = 0;
     public static final int CONTENT_DISPLAY_NAME_COLUMN = 1;
@@ -72,6 +73,7 @@ public class Mailbox extends EmailContent implements SyncColumns, MailboxColumns
     public static final int CONTENT_SYNC_STATUS_COLUMN = 14;
     public static final int CONTENT_PARENT_KEY_COLUMN = 15;
     public static final int CONTENT_LAST_SEEN_MESSAGE_KEY_COLUMN = 16;
+    public static final int CONTENT_LAST_TOUCHED_TIME_COLUMN = 17;
 
     /**
      * <em>NOTE</em>: If fields are added or removed, the method {@link #getHashes()}
@@ -84,7 +86,7 @@ public class Mailbox extends EmailContent implements SyncColumns, MailboxColumns
         MailboxColumns.SYNC_INTERVAL, MailboxColumns.SYNC_TIME,
         MailboxColumns.FLAG_VISIBLE, MailboxColumns.FLAGS, MailboxColumns.VISIBLE_LIMIT,
         MailboxColumns.SYNC_STATUS, MailboxColumns.PARENT_KEY,
-        MailboxColumns.LAST_SEEN_MESSAGE_KEY,
+        MailboxColumns.LAST_SEEN_MESSAGE_KEY, MailboxColumns.LAST_TOUCHED_TIME,
     };
 
     private static final String ACCOUNT_AND_MAILBOX_TYPE_SELECTION =
@@ -270,6 +272,7 @@ public class Mailbox extends EmailContent implements SyncColumns, MailboxColumns
         mVisibleLimit = cursor.getInt(CONTENT_VISIBLE_LIMIT_COLUMN);
         mSyncStatus = cursor.getString(CONTENT_SYNC_STATUS_COLUMN);
         mLastSeenMessageKey = cursor.getLong(CONTENT_LAST_SEEN_MESSAGE_KEY_COLUMN);
+        mLastTouchedTime = cursor.getLong(CONTENT_LAST_TOUCHED_TIME_COLUMN);
     }
 
     @Override
@@ -291,6 +294,7 @@ public class Mailbox extends EmailContent implements SyncColumns, MailboxColumns
         values.put(MailboxColumns.VISIBLE_LIMIT, mVisibleLimit);
         values.put(MailboxColumns.SYNC_STATUS, mSyncStatus);
         values.put(MailboxColumns.LAST_SEEN_MESSAGE_KEY, mLastSeenMessageKey);
+        values.put(MailboxColumns.LAST_TOUCHED_TIME, mLastTouchedTime);
         return values;
     }
 
@@ -436,37 +440,39 @@ public class Mailbox extends EmailContent implements SyncColumns, MailboxColumns
         hash[CONTENT_ID_COLUMN]
              = mId;
         hash[CONTENT_DISPLAY_NAME_COLUMN]
-             = mDisplayName;
+                = mDisplayName;
         hash[CONTENT_SERVER_ID_COLUMN]
-             = mServerId;
+                = mServerId;
         hash[CONTENT_PARENT_SERVER_ID_COLUMN]
-             = mParentServerId;
+                = mParentServerId;
         hash[CONTENT_ACCOUNT_KEY_COLUMN]
-             = mAccountKey;
+                = mAccountKey;
         hash[CONTENT_TYPE_COLUMN]
-             = mType;
+                = mType;
         hash[CONTENT_DELIMITER_COLUMN]
-             = mDelimiter;
+                = mDelimiter;
         hash[CONTENT_SYNC_KEY_COLUMN]
-             = mSyncKey;
+                = mSyncKey;
         hash[CONTENT_SYNC_LOOKBACK_COLUMN]
-             = mSyncLookback;
+                = mSyncLookback;
         hash[CONTENT_SYNC_INTERVAL_COLUMN]
-             = mSyncInterval;
+                = mSyncInterval;
         hash[CONTENT_SYNC_TIME_COLUMN]
-             = mSyncTime;
+                = mSyncTime;
         hash[CONTENT_FLAG_VISIBLE_COLUMN]
-             = mFlagVisible;
+                = mFlagVisible;
         hash[CONTENT_FLAGS_COLUMN]
-             = mFlags;
+                = mFlags;
         hash[CONTENT_VISIBLE_LIMIT_COLUMN]
-             = mVisibleLimit;
+                = mVisibleLimit;
         hash[CONTENT_SYNC_STATUS_COLUMN]
-             = mSyncStatus;
+                = mSyncStatus;
         hash[CONTENT_PARENT_KEY_COLUMN]
-             = mParentKey;
+                = mParentKey;
         hash[CONTENT_LAST_SEEN_MESSAGE_KEY_COLUMN]
-             = mLastSeenMessageKey;
+                = mLastSeenMessageKey;
+        hash[CONTENT_LAST_TOUCHED_TIME_COLUMN]
+                = mLastTouchedTime;
         return hash;
     }
 
@@ -497,6 +503,7 @@ public class Mailbox extends EmailContent implements SyncColumns, MailboxColumns
         dest.writeInt(mVisibleLimit);
         dest.writeString(mSyncStatus);
         dest.writeLong(mLastSeenMessageKey);
+        dest.writeLong(mLastTouchedTime);
     }
 
     public Mailbox(Parcel in) {
@@ -518,6 +525,7 @@ public class Mailbox extends EmailContent implements SyncColumns, MailboxColumns
         mVisibleLimit = in.readInt();
         mSyncStatus = in.readString();
         mLastSeenMessageKey = in.readLong();
+        mLastTouchedTime = in.readLong();
     }
 
     public static final Parcelable.Creator<Mailbox> CREATOR = new Parcelable.Creator<Mailbox>() {
diff --git a/src/com/android/email/provider/EmailProvider.java b/src/com/android/email/provider/EmailProvider.java
index 5cce40dce..1948ceb23 100644
--- a/src/com/android/email/provider/EmailProvider.java
+++ b/src/com/android/email/provider/EmailProvider.java
@@ -140,8 +140,9 @@ public class EmailProvider extends ContentProvider {
     // Version 20: Add new policies to Policy table
     // Version 21: Add lastSeenMessageKey column to Mailbox table
     // Version 22: Upgrade path for IMAP/POP accounts to integrate with AccountManager
+    // Version 23: Add column to mailbox table for time of last access
 
-    public static final int DATABASE_VERSION = 22;
+    public static final int DATABASE_VERSION = 23;
 
     // Any changes to the database format *must* include update-in-place code.
     // Original version: 2
@@ -1078,6 +1079,10 @@ public class EmailProvider extends ContentProvider {
                 upgradeFromVersion21ToVersion22(db, mContext);
                 oldVersion = 22;
             }
+            if (oldVersion == 22) {
+                upgradeFromVersion22ToVersion23(db);
+                oldVersion = 23;
+            }
         }
 
         @Override
@@ -2070,4 +2075,15 @@ public class EmailProvider extends ContentProvider {
             Log.w(TAG, "Exception upgrading EmailProvider.db from 20 to 21 " + e);
         }
     }
+
+    /** Upgrades the database from v22 to v23 */
+    private static void upgradeFromVersion22ToVersion23(SQLiteDatabase db) {
+        try {
+            db.execSQL("alter table " + Mailbox.TABLE_NAME
+                    + " add column " + Mailbox.LAST_TOUCHED_TIME + " integer default 0;");
+        } catch (SQLException e) {
+            // Shouldn't be needed unless we're debugging and interrupt the process
+            Log.w(TAG, "Exception upgrading EmailProvider.db from 22 to 23 " + e);
+        }
+    }
 }