技术问询：如何实现Gmail邮件自动部分转发仅提取链接

Got it, this is totally doable with Google Apps Script—here's a step-by-step guide to make this work exactly how you want:

You can access it two easy ways:

• From Gmail: Click the gear icon → Settings → See all settings → Advanced, scroll down to "Google Apps Script" and click the link.
• Or just search for "Google Apps Script" in your browser, then log in with the same Google account you use for Gmail.
  Once there, click "New Project" to create a blank script file.

Replace the default myFunction() code with this script—make sure to update the placeholder values to match your needs:

function autoForwardOnlyLink() {
  // 1. 先设置搜索条件，确保只处理你每天收到的那封特定邮件
  // 比如指定发件人、主题，避免误处理其他邮件
  const searchQuery = "from:daily-alert@example.com subject:每日更新"; // 替换成你的实际发件人/主题
  const threads = GmailApp.search(searchQuery, 0, 1); // 只取最新的1封，防止重复处理

  if (threads.length === 0) return; // 没找到目标邮件就直接退出

  const thread = threads[0];
  const latestMessage = thread.getMessages()[thread.getMessageCount() - 1];
  const emailBody = latestMessage.getBody();

  // 2. 提取邮件里的链接，这里用正则匹配常见的URL格式
  const urlPattern = /https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)/g;
  const foundLinks = emailBody.match(urlPattern);

  if (!foundLinks || foundLinks.length === 0) return; // 没找到链接就退出

  // 取第一个匹配到的链接，如果需要多个可以调整逻辑
  const targetLink = foundLinks[0];

  // 3. 设置转发的收件人、主题和内容
  const forwardRecipient = "your-target-email@example.com"; // 替换成要转发的邮箱
  const forwardSubject = "每日提取的链接";
  const forwardContent = `提取到的链接：\n${targetLink}`;

  // 发送邮件，完全自定义内容，不会带原邮件的发件人信息
  GmailApp.sendEmail(forwardRecipient, forwardSubject, forwardContent);

  // 可选：标记原邮件为已读，避免重复触发处理
  thread.markRead();
}

You need to tell Google when to run this script—here's how:

• In the script editor, click the clock icon (Triggers) in the left sidebar.
• Click Add Trigger in the bottom right corner.
• Configure the trigger settings:
  • Choose autoForwardOnlyLink as the function to run.
  • For event source, pick Time-driven if you want it to run at a specific time every day (since you get the email daily), or Gmail > New email received if you want it to trigger right when the email arrives.
  • Adjust the frequency (e.g., "Day timer" > choose a time window when you expect the email to arrive) and save.

Before relying on it, run the script manually once to make sure it works:

• Click the run button (▶️) in the script editor. You'll need to grant permissions the first time—follow the prompts to allow the script to access your Gmail.
• Check the recipient email inbox—you should see a new email with just the extracted link, no original sender info.

• If your email has multiple links, you can modify the script to pick a specific one (e.g., check for links containing a certain keyword) or include all of them.
• The regex for links works for most standard URLs, but if your link has unusual formatting, you might need to tweak the pattern a bit.
• If you change the search query later, make sure to update it in the script to keep targeting the right email.

内容的提问来源于stack exchange，提问作者aldobz