[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-08-29 (世界標準時間)。"],[],[],null,["# Postmaster Tools API overview\n\nThe Postmaster Tools API allows you to gather metrics on bulk emails sent to\nGmail users and import data into, or merge that data with, other systems.\nMetrics include the percentage of your email marked as spam by the user and\ndelivery errors. For a full explanation of the metrics provided by the\nPostmaster Tools API, refer to Dashboards section of the\n[Postmaster Tools help center article](https://support.google.com/mail/answer/6227174).\n\nHigh-level implementation steps\n-------------------------------\n\nFollow these high-level steps to use this API:\n\n1. Set up an authentication domain, either the DKIM (d=) or SPF domain (Return-Path domain) that is used to authenticate your email.\n2. Set up the API:\n 1. Create a project.\n 2. Turn on the Postmaster Tools API.\n 3. Set up credentials for the API.\n 4. Create an OAuth2 token.\n3. Use the OAuth2 token and credentials to make API calls including verifying domains and retrieving metrics.\n\nNext steps\n----------\n\nTo set up the authentication domain, proceed to\n[Set up authentication domain](/workspace/gmail/postmaster/guides/domain)."]]