verify_send_as
Send verification emails to confirm send-as aliases in Gmail accounts. This tool initiates the verification process for email aliases to ensure proper authorization before use.
Instructions
Sends a verification email to the specified send-as alias
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| sendAsEmail | Yes | The send-as alias to be verified |
Implementation Reference
- src/index.ts:1220-1231 (registration)Registers the 'verify_send_as' MCP tool with input schema (sendAsEmail: string) and inline handler that uses the Gmail API to send a verification email to the specified send-as alias via gmail.users.settings.sendAs.verify, wrapped in handleTool for auth and error handling.
server.tool("verify_send_as", "Sends a verification email to the specified send-as alias", { sendAsEmail: z.string().describe("The send-as alias to be verified") }, async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.sendAs.verify({ userId: 'me', sendAsEmail: params.sendAsEmail }) return formatResponse(data) }) } ) - src/index.ts:1225-1230 (handler)The handler function for the 'verify_send_as' tool, which authenticates via handleTool, calls the Gmail API's verify method on sendAs, and formats the response.
async (params) => { return handleTool(config, async (gmail: gmail_v1.Gmail) => { const { data } = await gmail.users.settings.sendAs.verify({ userId: 'me', sendAsEmail: params.sendAsEmail }) return formatResponse(data) }) } - src/index.ts:1222-1224 (schema)Zod schema defining the input parameter for the 'verify_send_as' tool: sendAsEmail (string).
{ sendAsEmail: z.string().describe("The send-as alias to be verified") }, - src/index.ts:50-80 (helper)Shared helper function used by all tools, including 'verify_send_as', to handle OAuth2 authentication, create Gmail client, execute the API call, and manage auth errors.
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}` }); } } - src/index.ts:48-48 (helper)Helper to format tool responses as MCP content blocks with JSON stringified data.
const formatResponse = (response: any) => ({ content: [{ type: "text", text: JSON.stringify(response) }] })