diff --git a/src/index.ts b/src/index.ts
index 7572973..104759e 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -674,6 +674,24 @@ server.setRequestHandler(ListToolsRequestSchema, async () => {
           required: ['emailId', 'targetMailboxId'],
         },
       },
+      {
+        name: 'archive_email',
+        description: 'Archive an email — move it to the target mailbox AND mark it as read in a single atomic JMAP operation. Equivalent to calling move_email followed by mark_email_read, but in one MCP call and one Email/set patch (the move and the read flag land together or not at all). For trashing an email, use delete_email instead — that follows a different convention and does not auto-mark-read.',
+        inputSchema: {
+          type: 'object',
+          properties: {
+            emailId: {
+              type: 'string',
+              description: 'ID of the email to archive',
+            },
+            targetMailboxId: {
+              type: 'string',
+              description: 'ID of the destination mailbox',
+            },
+          },
+          required: ['emailId', 'targetMailboxId'],
+        },
+      },
       {
         name: 'add_labels',
         description: 'Add labels (mailboxes) to an email without removing existing ones',
@@ -1469,6 +1487,23 @@ server.setRequestHandler(CallToolRequestSchema, async (request) => {
         };
       }
 
+      case 'archive_email': {
+        const { emailId, targetMailboxId } = (args ?? {}) as any;
+        if (!emailId || !targetMailboxId) {
+          throw new McpError(ErrorCode.InvalidParams, 'emailId and targetMailboxId are required');
+        }
+        const client = initializeClient();
+        await client.archiveEmail(emailId, targetMailboxId);
+        return {
+          content: [
+            {
+              type: 'text',
+              text: 'Email archived successfully (moved to target mailbox and marked as read)',
+            },
+          ],
+        };
+      }
+
       case 'add_labels': {
         const { emailId, mailboxIds } = args as any;
         if (!emailId) {
@@ -1753,7 +1788,7 @@ server.setRequestHandler(CallToolRequestSchema, async (request) => {
             available: true,
             functions: [
               'list_mailboxes', 'list_emails', 'get_email', 'send_email', 'create_draft', 'edit_draft', 'send_draft', 'search_emails',
-              'get_recent_emails', 'mark_email_read', 'pin_email', 'delete_email', 'move_email',
+              'get_recent_emails', 'mark_email_read', 'pin_email', 'delete_email', 'move_email', 'archive_email',
               'get_email_attachments', 'download_attachment', 'advanced_search', 'get_thread',
               'get_mailbox_stats', 'get_account_summary', 'bulk_mark_read', 'bulk_pin', 'bulk_move', 'bulk_delete',
               'add_labels', 'remove_labels', 'bulk_add_labels', 'bulk_remove_labels'
diff --git a/src/jmap-client.ts b/src/jmap-client.ts
index 77873d7..bd5752f 100644
--- a/src/jmap-client.ts
+++ b/src/jmap-client.ts
@@ -881,6 +881,57 @@ export class JmapClient {
     }
   }
 
+  async archiveEmail(emailId: string, targetMailboxId: string): Promise<void> {
+    const session = await this.getSession();
+
+    const getRequest: JmapRequest = {
+      using: ['urn:ietf:params:jmap:core', 'urn:ietf:params:jmap:mail'],
+      methodCalls: [
+        ['Email/get', {
+          accountId: session.accountId,
+          ids: [emailId],
+          properties: ['mailboxIds']
+        }, 'getEmail']
+      ]
+    };
+    const getResponse = await this.makeRequest(getRequest);
+    const email = this.getListResult(getResponse, 0)[0];
+
+    if (!email) {
+      throw new Error(`Email not found: ${emailId}`);
+    }
+
+    const patch: Record<string, boolean | null> = {};
+    if (email.mailboxIds) {
+      for (const mbId of Object.keys(email.mailboxIds)) {
+        patch[`mailboxIds/${mbId}`] = null;
+      }
+    }
+    patch[`mailboxIds/${targetMailboxId}`] = true;
+    patch['keywords/$seen'] = true;
+
+    const setRequest: JmapRequest = {
+      using: ['urn:ietf:params:jmap:core', 'urn:ietf:params:jmap:mail'],
+      methodCalls: [
+        ['Email/set', {
+          accountId: session.accountId,
+          update: {
+            [emailId]: patch
+          }
+        }, 'archiveEmail']
+      ]
+    };
+
+    const response = await this.makeRequest(setRequest);
+    const result = this.getMethodResult(response, 0);
+
+    if (result.notUpdated && result.notUpdated[emailId]) {
+      const err = result.notUpdated[emailId];
+      const detail = err.description ? ` - ${err.description}` : '';
+      throw new Error(`Failed to archive email: ${err.type}${detail}`);
+    }
+  }
+
   async addLabels(emailId: string, mailboxIds: string[]): Promise<void> {
     const session = await this.getSession();