diff --git a/lib/features/mailbox/data/model/mailbox_mark_as_read_arguments.dart b/lib/features/mailbox/data/model/mailbox_mark_as_read_arguments.dart
new file mode 100644
index 000000000..ade081aaf
--- /dev/null
+++ b/lib/features/mailbox/data/model/mailbox_mark_as_read_arguments.dart
@@ -0,0 +1,23 @@
+
+import 'package:equatable/equatable.dart';
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:jmap_dart_client/jmap/mail/mailbox/mailbox.dart';
+import 'package:tmail_ui_user/features/email/data/network/email_api.dart';
+import 'package:tmail_ui_user/features/thread/data/network/thread_api.dart';
+
+class MailboxMarkAsReadArguments with EquatableMixin {
+
+  final AccountId accountId;
+  final MailboxId mailboxId;
+  final ThreadAPI threadAPI;
+  final EmailAPI emailAPI;
+
+  MailboxMarkAsReadArguments(
+    this.threadAPI,
+    this.emailAPI,
+    this.accountId,
+    this.mailboxId);
+
+  @override
+  List<Object?> get props => [accountId, mailboxId];
+}
\ No newline at end of file
diff --git a/lib/features/mailbox/data/network/mailbox_isolate_worker.dart b/lib/features/mailbox/data/network/mailbox_isolate_worker.dart
new file mode 100644
index 000000000..0ac96c0d4
--- /dev/null
+++ b/lib/features/mailbox/data/network/mailbox_isolate_worker.dart
@@ -0,0 +1,138 @@
+import 'dart:async';
+
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+import 'package:core/utils/app_logger.dart';
+import 'package:dartz/dartz.dart';
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:jmap_dart_client/jmap/core/properties/properties.dart';
+import 'package:jmap_dart_client/jmap/core/unsigned_int.dart';
+import 'package:jmap_dart_client/jmap/core/utc_date.dart';
+import 'package:jmap_dart_client/jmap/core/sort/comparator.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email_comparator.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email_comparator_property.dart';
+import 'package:jmap_dart_client/jmap/mail/email/email_filter_condition.dart';
+import 'package:jmap_dart_client/jmap/mail/email/keyword_identifier.dart';
+import 'package:jmap_dart_client/jmap/mail/mailbox/mailbox.dart';
+import 'package:model/email/email_property.dart';
+import 'package:model/email/read_actions.dart';
+import 'package:tmail_ui_user/features/email/data/network/email_api.dart';
+import 'package:tmail_ui_user/features/mailbox/data/model/mailbox_mark_as_read_arguments.dart';
+import 'package:tmail_ui_user/features/mailbox/domain/state/mark_as_mailbox_read_state.dart';
+import 'package:tmail_ui_user/features/thread/data/network/thread_api.dart';
+import 'package:tmail_ui_user/features/thread/domain/model/email_response.dart';
+import 'package:worker_manager/worker_manager.dart';
+
+class MailboxIsolateWorker {
+
+  final ThreadAPI _threadApi;
+  final EmailAPI _emailApi;
+  final Executor _isolateExecutor;
+
+  MailboxIsolateWorker(this._threadApi, this._emailApi, this._isolateExecutor);
+
+  Future<List<Email>> markAsMailboxRead(
+      AccountId accountId,
+      MailboxId mailboxId,
+      int totalEmailUnread,
+      StreamController<Either<Failure, Success>> onProgressController
+  ) async {
+    final result = await _isolateExecutor.execute(
+        arg1: ArgumentsSendPort(MailboxMarkAsReadArguments(
+            _threadApi,
+            _emailApi,
+            accountId,
+            mailboxId)),
+        fun1: (arguments) => _handleMarkAsMailboxReadAction(arguments),
+        onUpdateProgress: (value) {
+          if (value is List<Email>) {
+            log('MailboxIsolateWorker::markAsMailboxRead(): onUpdateProgress: COUNT ${value.length}');
+            log('MailboxIsolateWorker::markAsMailboxRead(): onUpdateProgress: TOTAL $totalEmailUnread');
+            log('MailboxIsolateWorker::markAsMailboxRead(): onUpdateProgress: PERCENT ${value.length / totalEmailUnread}');
+            log('MailboxIsolateWorker::markAsMailboxRead(): onUpdateProgress: ${((value.length / totalEmailUnread) * 100).toInt()}%');
+            onProgressController.add(Right(UpdatingMarkAsMailboxReadState(
+                mailboxId: mailboxId,
+                totalUnread: totalEmailUnread,
+                countRead: value.length)));
+          }
+        });
+    return result;
+  }
+
+  static Future<List<Email>> _handleMarkAsMailboxReadAction(dynamic argumentsAction) async {
+    if (argumentsAction is! ArgumentsSendPort) {
+      log('MailboxIsolateWorker::_handleMarkAsMailboxReadAction(): argumentsAction NOT ArgumentsSendPort');
+      return List.empty();
+    }
+
+    final args = argumentsAction.argument as MailboxMarkAsReadArguments;
+    final sendPort = argumentsAction.sendPort;
+
+    if (sendPort != null) {
+      log('MailboxIsolateWorker::_handleMarkAsMailboxReadAction(): SEND_PORT NOT NULL');
+    } else {
+      log('MailboxIsolateWorker::_handleMarkAsMailboxReadAction(): SEND_PORT NULL');
+    }
+
+    List<Email> emailListCompleted = List.empty(growable: true);
+
+    try {
+      bool mailboxHasEmails = true;
+      UTCDate? lastReceivedDate;
+      EmailId? lastEmailId;
+
+      while (mailboxHasEmails) {
+        final emailResponse = await args.threadAPI
+            .getAllEmail(args.accountId,
+                limit: UnsignedInt(30),
+                filter: EmailFilterCondition(
+                    inMailbox: args.mailboxId,
+                    notKeyword: KeyWordIdentifier.emailSeen.value,
+                    before: lastReceivedDate),
+                sort: <Comparator>{}..add(
+                    EmailComparator(EmailComparatorProperty.receivedAt)
+                      ..setIsAscending(false)),
+                properties: Properties({
+                  EmailProperty.id,
+                  EmailProperty.keywords,
+                  EmailProperty.receivedAt,
+                }))
+            .then((response) {
+              var listEmails = response.emailList;
+              if (listEmails != null && listEmails.isNotEmpty && lastEmailId != null) {
+                listEmails = listEmails
+                    .where((email) => email.id != lastEmailId)
+                    .toList();
+              }
+              return EmailsResponse(emailList: listEmails, state: response.state);
+            });
+        final listEmailUnread = emailResponse.emailList;
+
+        log('MailboxIsolateWorker::_handleMarkAsMailboxRead(): listEmailUnread: ${listEmailUnread?.length}');
+
+        if (listEmailUnread == null || listEmailUnread.isEmpty) {
+          mailboxHasEmails = false;
+        } else {
+          lastEmailId = listEmailUnread.last.id;
+          lastReceivedDate = listEmailUnread.last.receivedAt;
+
+          final result = await args.emailAPI.markAsRead(
+              args.accountId,
+              listEmailUnread,
+              ReadActions.markAsRead);
+
+          log('MailboxIsolateWorker::_handleMarkAsMailboxRead(): MARK_READ: ${result.length}');
+          emailListCompleted.addAll(result);
+          if (sendPort != null) {
+            sendPort.send(ValueUpdate(emailListCompleted));
+          }
+        }
+      }
+    } catch (e) {
+      log('MailboxIsolateWorker::_handleMarkAsMailboxRead(): ERROR: $e');
+    }
+    log('MailboxIsolateWorker::_handleMarkAsMailboxRead(): TOTAL_READ: ${emailListCompleted.length}');
+    return emailListCompleted;
+  }
+}
diff --git a/lib/features/mailbox/domain/state/mark_as_mailbox_read_state.dart b/lib/features/mailbox/domain/state/mark_as_mailbox_read_state.dart
new file mode 100644
index 000000000..24fca8c2e
--- /dev/null
+++ b/lib/features/mailbox/domain/state/mark_as_mailbox_read_state.dart
@@ -0,0 +1,63 @@
+import 'package:core/core.dart';
+import 'package:jmap_dart_client/jmap/mail/mailbox/mailbox.dart';
+
+class MarkAsMailboxReadLoading extends UIState {
+
+  MarkAsMailboxReadLoading();
+
+  @override
+  List<Object?> get props => [];
+}
+
+class UpdatingMarkAsMailboxReadState extends UIState {
+
+  final MailboxId mailboxId;
+  final int totalUnread;
+  final int countRead;
+
+  UpdatingMarkAsMailboxReadState({
+    required this.mailboxId,
+    required this.totalUnread,
+    required this.countRead});
+
+  @override
+  List<Object?> get props => [mailboxId, countRead, totalUnread];
+}
+
+class MarkAsMailboxReadAllSuccess extends UIState {
+
+  final MailboxName mailboxName;
+
+  MarkAsMailboxReadAllSuccess(this.mailboxName);
+
+  @override
+  List<Object?> get props => [mailboxName];
+}
+
+class MarkAsMailboxReadHasSomeEmailFailure extends UIState {
+
+  final MailboxName mailboxName;
+  final int countEmailsRead;
+
+  MarkAsMailboxReadHasSomeEmailFailure(this.mailboxName, this.countEmailsRead);
+
+  @override
+  List<Object?> get props => [mailboxName, countEmailsRead];
+}
+
+class MarkAsMailboxReadAllFailure extends FeatureFailure {
+
+  MarkAsMailboxReadAllFailure();
+
+  @override
+  List<Object?> get props => [];
+}
+
+class MarkAsMailboxReadFailure extends FeatureFailure {
+  final dynamic exception;
+
+  MarkAsMailboxReadFailure(this.exception);
+
+  @override
+  List<Object> get props => [exception];
+}
\ No newline at end of file