diff --git a/README.md b/README.md
index aff375a..2c43515 100644
--- a/README.md
+++ b/README.md
@@ -42,12 +42,13 @@ mcc.mailbox.get().then((e) => {
 - [x] Update mailbox ACL
 - [x] Get mailboxes
 - [x] Edit mailbox spam filter score
+- [x] Get Active User Sieve
 
 ### Aliases
-- [ ] Create alias
-- [ ] Delete alias
-- [ ] Update alias
-- [ ] Get aliases
+- [x] Create alias
+- [x] Delete alias
+- [x] Update alias
+- [x] Get aliases
 
 ### Sync Jobs
 - [ ] Create sync job
diff --git a/src/Endpoints/mailbox-endpoint.ts b/src/Endpoints/mailbox-endpoint.ts
index 76fbe89..f218c53 100644
--- a/src/Endpoints/mailbox-endpoint.ts
+++ b/src/Endpoints/mailbox-endpoint.ts
@@ -39,4 +39,8 @@ export default {
     editUserACL: function (this: MailCowClient, payload: ACLEditRequest): Promise<MailcowResponse> {
         return requestFactory.post<MailcowResponse>(`${this.BASE_URL}/edit/user-acl`, payload, this.HEADERS);
     },
+
+    getActiveUserSieve: function (this: MailCowClient, username: string): Promise<string[]> {
+        return requestFactory.get<string[]>(`${this.BASE_URL}/get/active-user-sieve/${username}`, this.HEADERS);
+    },
 }
\ No newline at end of file
diff --git a/src/index.ts b/src/index.ts
index ba2f9c1..a082389 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -48,6 +48,7 @@ export default class MailCowClient {
         delete: MailboxEndpoints.deleteMailbox.bind(this),
         edit: MailboxEndpoints.editMailbox.bind(this),
         get: MailboxEndpoints.getMailbox.bind(this),
+        getUserSieve: MailboxEndpoints.getActiveUserSieve.bind(this),
         spamscore: {
             edit: MailboxEndpoints.editSpamScore.bind(this),
         }