diff --git a/server_settings/lib/server_settings/set/set_server_settings_method.dart b/server_settings/lib/server_settings/set/set_server_settings_method.dart
new file mode 100644
index 000000000..a7241027d
--- /dev/null
+++ b/server_settings/lib/server_settings/set/set_server_settings_method.dart
@@ -0,0 +1,43 @@
+import 'package:jmap_dart_client/http/converter/account_id_converter.dart';
+import 'package:jmap_dart_client/http/converter/set/set_method_properties_converter.dart';
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:jmap_dart_client/jmap/core/capability/capability_identifier.dart';
+import 'package:jmap_dart_client/jmap/core/method/request/set_method.dart';
+import 'package:jmap_dart_client/jmap/core/request/request_invocation.dart';
+import 'package:server_settings/server_settings/capability_server_settings.dart';
+import 'package:server_settings/server_settings/tmail_server_settings.dart';
+
+class SetServerSettingsMethod extends SetMethod<TMailServerSettings> with OptionalUpdateSingleton<TMailServerSettings>{
+  SetServerSettingsMethod(AccountId accountId) : super(accountId);
+
+  @override
+  MethodName get methodName => MethodName('Settings/set');
+
+  @override
+  Set<CapabilityIdentifier> get requiredCapabilities => {
+    CapabilityIdentifier.jmapCore,
+    capabilityServerSettings,
+  };
+
+  @override
+  Map<String, dynamic> toJson() {
+    final val = <String, dynamic>{
+      'accountId': const AccountIdConverter().toJson(accountId),
+    };
+
+    void writeNotNull(String key, dynamic value) {
+      if (value != null) {
+        val[key] = value;
+      }
+    }
+
+    writeNotNull('ifInState', ifInState?.value);
+    writeNotNull('update', updateSingleton
+        ?.map((id, update) => SetMethodPropertiesConverter().fromMapIdToJson(id, update.toJson())));
+
+    return val;
+  }
+
+  @override
+  List<Object?> get props => [accountId, ifInState, update];
+}
\ No newline at end of file
diff --git a/server_settings/lib/server_settings/set/set_server_settings_response.dart b/server_settings/lib/server_settings/set/set_server_settings_response.dart
new file mode 100644
index 000000000..c38c83f17
--- /dev/null
+++ b/server_settings/lib/server_settings/set/set_server_settings_response.dart
@@ -0,0 +1,78 @@
+import 'package:jmap_dart_client/http/converter/account_id_converter.dart';
+import 'package:jmap_dart_client/http/converter/id_converter.dart';
+import 'package:jmap_dart_client/http/converter/state_nullable_converter.dart';
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:jmap_dart_client/jmap/core/error/set_error.dart';
+import 'package:jmap_dart_client/jmap/core/id.dart';
+import 'package:jmap_dart_client/jmap/core/method/response/set_response.dart';
+import 'package:jmap_dart_client/jmap/core/state.dart';
+import 'package:server_settings/server_settings/tmail_server_settings.dart';
+
+class SetServerSettingsResponse extends SetResponse<TMailServerSettings> {
+
+  SetServerSettingsResponse(
+    AccountId accountId,
+    {
+      State? newState,
+      State? oldState,
+      Map<Id, TMailServerSettings>? created,
+      Map<Id, TMailServerSettings?>? updated,
+      Set<Id>? destroyed,
+      Map<Id, SetError>? notCreated,
+      Map<Id, SetError>? notUpdated,
+      Map<Id, SetError>? notDestroyed
+    }
+  ) : super(
+    accountId,
+    newState: newState,
+    oldState: oldState,
+    created: created,
+    updated: updated,
+    destroyed: destroyed,
+    notCreated: notCreated,
+    notUpdated: notUpdated,
+    notDestroyed: notDestroyed
+  );
+
+  static SetServerSettingsResponse deserialize(Map<String, dynamic> json) {
+    return SetServerSettingsResponse(
+      const AccountIdConverter().fromJson(json['accountId'] as String),
+      newState: const StateNullableConverter().fromJson(json['newState'] as String?),
+      oldState: const StateNullableConverter().fromJson(json['oldState'] as String?),
+      created: (json['created'] as Map<String, dynamic>?)
+        ?.map((key, value) => MapEntry(
+            const IdConverter().fromJson(key),
+            TMailServerSettings.fromJson(value as Map<String, dynamic>))),
+      updated: (json['updated'] as Map<String, dynamic>?)
+        ?.map((key, value) => MapEntry(
+            const IdConverter().fromJson(key),
+            value != null ? TMailServerSettings.fromJson(value as Map<String, dynamic>) : null)),
+      destroyed: (json['destroyed'] as List<dynamic>?)
+        ?.map((id) => const IdConverter().fromJson(id)).toSet(),
+      notCreated: (json['notCreated'] as Map<String, dynamic>?)
+        ?.map((key, value) => MapEntry(
+            const IdConverter().fromJson(key),
+            SetError.fromJson(value))),
+      notUpdated: (json['notUpdated'] as Map<String, dynamic>?)
+        ?.map((key, value) => MapEntry(
+            const IdConverter().fromJson(key),
+            SetError.fromJson(value))),
+      notDestroyed: (json['notDestroyed'] as Map<String, dynamic>?)
+        ?.map((key, value) => MapEntry(
+            const IdConverter().fromJson(key),
+            SetError.fromJson(value))),
+    );
+  }
+
+  @override
+  List<Object?> get props => [
+    oldState,
+    newState,
+    created,
+    updated,
+    destroyed,
+    notCreated,
+    notUpdated,
+    notDestroyed
+  ];
+}
\ No newline at end of file
diff --git a/server_settings/test/server_settings/set/set_server_settings_method_test.dart b/server_settings/test/server_settings/set/set_server_settings_method_test.dart
new file mode 100644
index 000000000..678d57e63
--- /dev/null
+++ b/server_settings/test/server_settings/set/set_server_settings_method_test.dart
@@ -0,0 +1,127 @@
+import 'package:dio/dio.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:http_mock_adapter/http_mock_adapter.dart';
+import 'package:jmap_dart_client/http/http_client.dart';
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:jmap_dart_client/jmap/core/id.dart';
+import 'package:jmap_dart_client/jmap/jmap_request.dart';
+import 'package:server_settings/server_settings/get/get_server_settings_method.dart';
+import 'package:server_settings/server_settings/get/get_server_settings_response.dart';
+import 'package:server_settings/server_settings/server_settings_id.dart';
+import 'package:server_settings/server_settings/set/set_server_settings_method.dart';
+import 'package:server_settings/server_settings/tmail_server_settings.dart';
+
+void main() {
+  final expectedResult = TMailServerSettings(
+    id: ServerSettingsIdExtension.serverSettingsIdSingleton,
+    settings: TMailServerSettingOptions(alwaysReadReceipts: true),
+  );
+
+  group('set server settings method', () {
+    test('should return expected result', () async {
+      // arrange
+      final baseOption = BaseOptions(method: 'POST');
+      final dio = Dio(baseOption)..options.baseUrl = 'http://domain.com/jmap';
+      final dioAdapter = DioAdapter(dio: dio);
+      dioAdapter.onPost(
+        '',
+        (server) => server.reply(
+          200,
+          {
+            "sessionState": "abcdefghij",
+            "methodResponses": [
+              [
+                "Settings/set",
+                {
+                  "accountId": "123",
+                  "newState": "1",
+                  "updated": {"singleton": {}}
+                },
+                "c0"
+              ],
+              [
+                "Settings/get",
+                {
+                  "accountId": "123",
+                  "notFound": [],
+                  "state": "1",
+                  "list": [
+                    {
+                      "id": "singleton",
+                      "settings": {"read.receipts.always": "true"}
+                    }
+                  ]
+                },
+                "c1"
+              ]
+            ]
+          },
+        ),
+        data: {
+          "using": [
+            "urn:ietf:params:jmap:core",
+            "com:linagora:params:jmap:settings"
+          ],
+          "methodCalls": [
+            [
+              "Settings/set",
+              {
+                "accountId": "123",
+                "update": {
+                  "singleton": {
+                    "id": "singleton",
+                    "settings": {"read.receipts.always": "true"}
+                  }
+                }
+              },
+              "c0"
+            ],
+            [
+              "Settings/get",
+              {
+                "accountId": "123",
+                "ids": ["singleton"]
+              },
+              "c1"
+            ]
+          ]
+        },
+        headers: {
+          "accept": "application/json;jmapVersion=rfc-8621",
+          "content-length": 503
+        },
+      );
+
+      final httpClient = HttpClient(dio);
+      final processingInvocation = ProcessingInvocation();
+      final accountId = AccountId(Id('123'));
+
+      final setServerSettingsMethod = SetServerSettingsMethod(accountId)
+        ..addUpdatesSingleton({
+          ServerSettingsIdExtension.serverSettingsIdSingleton.id: expectedResult,
+        });
+      final requestBuilder =
+        JmapRequestBuilder(httpClient, processingInvocation)
+          ..invocation(setServerSettingsMethod);
+      final getServerSettingsMethod = GetServerSettingsMethod(accountId)
+        ..addIds({ServerSettingsIdExtension.serverSettingsIdSingleton.id});
+      final getServerSettingsInvocation =
+        requestBuilder.invocation(getServerSettingsMethod);
+
+      // act
+      final response = await (requestBuilder
+        ..usings(setServerSettingsMethod.requiredCapabilities))
+          .build()
+          .execute();
+
+      final setServerSettingsResponse =
+        response.parse<GetServerSettingsResponse>(
+          getServerSettingsInvocation.methodCallId,
+          GetServerSettingsResponse.deserialize);
+
+      // assert
+      expect(setServerSettingsResponse!.list.length, equals(1));
+      expect(setServerSettingsResponse.list, containsAll({expectedResult}));
+    });
+  });
+}