diff --git a/lib/features/mailbox_dashboard/presentation/controller/advanced_filter_controller.dart b/lib/features/mailbox_dashboard/presentation/controller/advanced_filter_controller.dart
index e47f562af..2f84ee76b 100644
--- a/lib/features/mailbox_dashboard/presentation/controller/advanced_filter_controller.dart
+++ b/lib/features/mailbox_dashboard/presentation/controller/advanced_filter_controller.dart
@@ -35,7 +35,7 @@ class AdvancedFilterController extends BaseController {
   final hasAttachment = false.obs;
   final startDate = Rxn<DateTime>();
   final endDate = Rxn<DateTime>();
-  final sortOrderType = EmailSortOrderType.mostRecent.obs;
+  final sortOrderType = EmailSortOrderType.defaultSortOrder.obs;
   final selectedFolderName = Rxn<String>();
 
   final GlobalKey<TagsEditorState> keyFromEmailTagEditor = GlobalKey<TagsEditorState>();
diff --git a/lib/features/mailbox_dashboard/presentation/controller/mailbox_dashboard_controller.dart b/lib/features/mailbox_dashboard/presentation/controller/mailbox_dashboard_controller.dart
index 60bd45eec..a80450b85 100644
--- a/lib/features/mailbox_dashboard/presentation/controller/mailbox_dashboard_controller.dart
+++ b/lib/features/mailbox_dashboard/presentation/controller/mailbox_dashboard_controller.dart
@@ -129,6 +129,7 @@ import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/refr
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/search/email_receive_time_type.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/search/email_sort_order_type.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/search/quick_search_filter.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/search/search_email_filter.dart';
 import 'package:tmail_ui_user/features/mailto/presentation/model/mailto_arguments.dart';
 import 'package:tmail_ui_user/features/manage_account/domain/state/create_new_rule_filter_state.dart';
 import 'package:tmail_ui_user/features/manage_account/domain/state/get_all_identities_state.dart';
@@ -2149,7 +2150,7 @@ class MailboxDashBoardController extends ReloadableController
 
   void _deleteSortOrderSearchFilter() {
     searchController.updateFilterEmail(
-      sortOrderTypeOption: const Some(EmailSortOrderType.mostRecent));
+      sortOrderTypeOption: const Some(SearchEmailFilter.defaultSortOrder));
     dispatchAction(StartSearchEmailAction());
   }
 
diff --git a/lib/features/mailbox_dashboard/presentation/model/search/advanced_search_filter.dart b/lib/features/mailbox_dashboard/presentation/model/search/advanced_search_filter.dart
new file mode 100644
index 000000000..e69de29bb
diff --git a/lib/features/mailbox_dashboard/presentation/model/search/quick_search_filter.dart b/lib/features/mailbox_dashboard/presentation/model/search/quick_search_filter.dart
index 806beac86..ac0416439 100644
--- a/lib/features/mailbox_dashboard/presentation/model/search/quick_search_filter.dart
+++ b/lib/features/mailbox_dashboard/presentation/model/search/quick_search_filter.dart
@@ -43,7 +43,7 @@ enum QuickSearchFilter {
         return AppLocalizations.of(context).fromMe;
       case QuickSearchFilter.sortBy:
         return sortOrderType?.getTitle(context)
-          ?? AppLocalizations.of(context).mostRecent;
+          ?? SearchEmailFilter.defaultSortOrder.getTitle(context);
       case QuickSearchFilter.dateTime:
         return receiveTimeType?.getTitle(
           context,
@@ -138,7 +138,7 @@ enum QuickSearchFilter {
           currentUserEmail?.isNotEmpty == true &&
           currentUserEmail == searchFilter.from.first;
       case QuickSearchFilter.sortBy:
-        return sortOrderType != EmailSortOrderType.mostRecent;
+        return sortOrderType != SearchEmailFilter.defaultSortOrder;
       case QuickSearchFilter.dateTime:
         return searchFilter.emailReceiveTimeType != EmailReceiveTimeType.allTime;
       case QuickSearchFilter.from:
diff --git a/lib/features/mailbox_dashboard/presentation/model/search/search_email_filter.dart b/lib/features/mailbox_dashboard/presentation/model/search/search_email_filter.dart
index 5759e86a9..b34d0dc31 100644
--- a/lib/features/mailbox_dashboard/presentation/model/search/search_email_filter.dart
+++ b/lib/features/mailbox_dashboard/presentation/model/search/search_email_filter.dart
@@ -17,6 +17,9 @@ import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/sear
 import 'package:tmail_ui_user/features/thread/domain/model/search_query.dart';
 
 class SearchEmailFilter with EquatableMixin, OptionParamMixin {
+
+  static const EmailSortOrderType defaultSortOrder = EmailSortOrderType.relevance;
+
   final Set<String> from;
   final Set<String> to;
   final SearchQuery? text;
@@ -56,7 +59,7 @@ class SearchEmailFilter with EquatableMixin, OptionParamMixin {
         hasAttachment = hasAttachment ?? false,
         emailReceiveTimeType =
           emailReceiveTimeType ?? EmailReceiveTimeType.allTime,
-        sortOrderType = sortOrderType ?? EmailSortOrderType.mostRecent;
+        sortOrderType = sortOrderType ?? defaultSortOrder;
 
   SearchEmailFilter copyWith({
     Option<Set<String>>? fromOption,
@@ -189,7 +192,7 @@ class SearchEmailFilter with EquatableMixin, OptionParamMixin {
     hasKeyword.isNotEmpty == true ||
     notKeyword.isNotEmpty == true ||
     emailReceiveTimeType != EmailReceiveTimeType.allTime ||
-    sortOrderType != EmailSortOrderType.mostRecent ||
+    sortOrderType != SearchEmailFilter.defaultSortOrder ||
     (mailbox != null && mailbox?.id != PresentationMailbox.unifiedMailbox.id) ||
     hasAttachment;
 
diff --git a/lib/features/search/email/presentation/search_email_controller.dart b/lib/features/search/email/presentation/search_email_controller.dart
index c6d979870..6c316210d 100644
--- a/lib/features/search/email/presentation/search_email_controller.dart
+++ b/lib/features/search/email/presentation/search_email_controller.dart
@@ -103,7 +103,7 @@ class SearchEmailController extends BaseController
   final searchIsRunning = RxBool(false);
   final emailReceiveTimeType = EmailReceiveTimeType.allTime.obs;
   final selectionMode = Rx<SelectMode>(SelectMode.INACTIVE);
-  final emailSortOrderType = EmailSortOrderType.mostRecent.obs;
+  final emailSortOrderType = SearchEmailFilter.defaultSortOrder.obs;
   final suggestionSearchViewState = Rx<Either<Failure, Success>>(Right(UIState.idle));
   final resultSearchViewState = Rx<Either<Failure, Success>>(Right(UIState.idle));
 
@@ -589,7 +589,7 @@ class SearchEmailController extends BaseController
     listSuggestionSearch.clear();
     listResultSearch.clear();
     emailReceiveTimeType.value = EmailReceiveTimeType.allTime;
-    emailSortOrderType.value = EmailSortOrderType.mostRecent;
+    emailSortOrderType.value = SearchEmailFilter.defaultSortOrder;
     searchEmailFilter.value = SearchEmailFilter.initial();
     searchIsRunning.value = false;
     final isMailAddress = EmailUtils.isEmailAddressValid(queryString);
@@ -1017,8 +1017,8 @@ class SearchEmailController extends BaseController
   }
 
   void _deleteSortOrderSearchFilter(BuildContext context) {
-    emailSortOrderType.value = EmailSortOrderType.mostRecent;
-    _updateSimpleSearchFilter(sortOrderTypeOption: const Some(EmailSortOrderType.mostRecent));
+    emailSortOrderType.value = SearchEmailFilter.defaultSortOrder;
+    _updateSimpleSearchFilter(sortOrderTypeOption: const Some(SearchEmailFilter.defaultSortOrder));
     _searchEmailAction(context);
   }
 
@@ -1056,7 +1056,7 @@ class SearchEmailController extends BaseController
     canSearchMore = true;
     searchMoreState = SearchMoreState.idle;
     emailReceiveTimeType.value = EmailReceiveTimeType.allTime;
-    emailSortOrderType.value = EmailSortOrderType.mostRecent;
+    emailSortOrderType.value = SearchEmailFilter.defaultSortOrder;
     searchEmailFilter.value = SearchEmailFilter.initial();
     _searchEmailAction(context);
   }