寻求适配Google Inbox的自动转发脚本替代方案

Great question—since Google Inbox doesn’t support custom labels like Gmail does, we need to work with its native features and adjust your script to use alternative targeting methods. Here are a few solid approaches to implement auto-forwarding without labels:

Option 1: Target Emails via Search Queries (Sender, Subject, Keywords) #

Google Inbox uses Gmail’s underlying search syntax, so you can directly target emails using criteria like sender, subject, or keywords. To avoid re-forwarding the same emails, you can mark threads as "Done" (a core Inbox feature) after processing—this removes them from your main Inbox view and ensures they won’t be picked up in future runs.

Here’s the adjusted script:

function autoForwardInbox() {
  var recipient = 'domain@forward.domain.com';
  var interval = 5; // Match your trigger interval (minutes)
  var date = new Date();
  date.setMinutes(date.getMinutes() - interval);
  
  // Customize this search query to target your desired emails
  // Example: Emails from "client@example.com" received in the last 5 mins, not marked as Done
  var searchQuery = `from:client@example.com after:${Math.floor(date.getTime()/1000)} is:undone`;
  
  var threads = GmailApp.search(searchQuery);
  
  threads.forEach(thread => {
    // Forward the entire thread to your recipient
    thread.forward(recipient);
    // Mark as Done to prevent re-forwarding
    thread.markAsDone();
  });
}

You can tweak the search query to fit your needs:

• Use subject:"Urgent Request" to target specific subject lines
• Use has:attachment to forward emails with files
• Use is:inbox to target only emails in your main Inbox view

Option 2: Target Emails in a Specific Inbox Bundle #

Inbox bundles (like "Work", "Promotions", or custom bundles) map to hidden system labels in Gmail. You can use these labels in your search query to target all emails in a specific bundle.

To find the exact label name for your bundle:

1. Open the regular Gmail interface (Inbox shares Gmail’s backend)
2. Check the left-hand labels list—your custom Inbox bundles will appear here

Adjust the search query in the script above to use the bundle’s label:

// Example: Target emails in the "Work" bundle, received in the last 5 mins
var searchQuery = `label:work after:${Math.floor(date.getTime()/1000)} is:undone`;

Option 3: Track Forwarded Emails with Custom Properties (Keep Emails in Inbox) #

If you don’t want to mark emails as "Done" (e.g., you need to keep them in your Inbox), you can store the IDs of forwarded threads in Google’s Properties Service to avoid duplicates.

Here’s the script for this approach:

function autoForwardInbox() {
  var recipient = 'domain@forward.domain.com';
  var interval = 5;
  var date = new Date();
  date.setMinutes(date.getMinutes() - interval);
  
  // Target emails (adjust query as needed)
  var searchQuery = `after:${Math.floor(date.getTime()/1000)} is:inbox`;
  var threads = GmailApp.search(searchQuery);
  
  // Load already forwarded thread IDs
  var userProperties = PropertiesService.getUserProperties();
  var forwardedThreads = userProperties.getProperty('forwardedThreads') || '';
  var forwardedIds = new Set(forwardedThreads.split(',').filter(id => id));
  
  threads.forEach(thread => {
    var threadId = thread.getId();
    if (!forwardedIds.has(threadId)) {
      thread.forward(recipient);
      // Add the thread ID to our tracked list
      forwardedIds.add(threadId);
      userProperties.setProperty('forwardedThreads', Array.from(forwardedIds).join(','));
    }
  });
}

Final Setup Note #

Don’t forget to set up a time-driven trigger in Google Apps Script to run your function every 5 minutes—just like you did for your original Gmail script. This ensures the script checks for new emails on a regular basis.

内容的提问来源于stack exchange，提问作者JoaMika