update_imap
Modify IMAP settings for a Gmail account, including enabling or disabling IMAP, setting expunge behavior for deleted messages, and defining folder size limits.
Instructions
Updates IMAP settings
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| enabled | Yes | Whether IMAP is enabled for the account | |
| expungeBehavior | No | The action that will be executed on a message when it is marked as deleted and expunged from the last visible IMAP folder | |
| maxFolderSize | No | An optional limit on the number of messages that can be accessed through IMAP |
Implementation Reference
- src/index.ts:901-914 (registration)Registration of the 'update_imap' MCP tool, including input schema definition and the handler function that calls Gmail API's users.settings.updateImap via the shared handleTool wrapper.server.tool("update_imap", "Updates IMAP settings", { enabled: z.boolean().describe("Whether IMAP is enabled for the account"), expungeBehavior: z.enum(['archive', 'trash', 'deleteForever']).optional().describe("The action that will be executed on a message when it is marked as deleted and expunged from the last visible IMAP folder"), maxFolderSize: z.number().optional().describe("An optional limit on the number of messages that can be accessed through IMAP") }, async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.updateImap({ userId: 'me', requestBody: params }) return formatResponse(data) }) } )
- src/index.ts:908-913 (handler)The handler function for 'update_imap' tool, which uses handleTool to execute the Gmail API call to update IMAP settings.async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.updateImap({ userId: 'me', requestBody: params }) return formatResponse(data) }) }
- src/index.ts:903-907 (schema)Input schema (Zod) for the 'update_imap' tool parameters.{ enabled: z.boolean().describe("Whether IMAP is enabled for the account"), expungeBehavior: z.enum(['archive', 'trash', 'deleteForever']).optional().describe("The action that will be executed on a message when it is marked as deleted and expunged from the last visible IMAP folder"), maxFolderSize: z.number().optional().describe("An optional limit on the number of messages that can be accessed through IMAP") },
- src/index.ts:50-80 (helper)Shared 'handleTool' helper function used by all Gmail tools, including 'update_imap', for OAuth validation, client creation, API call execution, and error handling.const handleTool = async (queryConfig: Record<string, any> | undefined, apiCall: (gmail: gmail_v1.Gmail) => Promise<any>) => { try { const oauth2Client = queryConfig ? createOAuth2Client(queryConfig) : defaultOAuth2Client if (!oauth2Client) throw new Error('OAuth2 client could not be created, please check your credentials') const credentialsAreValid = await validateCredentials(oauth2Client) if (!credentialsAreValid) throw new Error('OAuth2 credentials are invalid, please re-authenticate') const gmailClient = queryConfig ? google.gmail({ version: 'v1', auth: oauth2Client }) : defaultGmailClient if (!gmailClient) throw new Error('Gmail client could not be created, please check your credentials') const result = await apiCall(gmailClient) return result } catch (error: any) { // Check for specific authentication errors if ( error.message?.includes("invalid_grant") || error.message?.includes("refresh_token") || error.message?.includes("invalid_client") || error.message?.includes("unauthorized_client") || error.code === 401 || error.code === 403 ) { return formatResponse({ error: `Authentication failed: ${error.message}. Please re-authenticate by running: npx @shinzolabs/gmail-mcp auth`, }); } return formatResponse({ error: `Tool execution failed: ${error.message}` }); } }