Force emails not to be grouped into conversations

2019-01-17 10:28发布

My website sends emails to me with the same subject and they are being grouped into conversations even if I delete old ones (Mail, Gmail). I know I can change the subject to prevent this, but is there a header or something else that can be added to do this without forcing unique subject lines?

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家丑人穷心不美
2楼-- · 2019-01-17 11:13

On the top of my head, there are two methods to avoid threading:

  • set the SMTP header X-Entity-Ref-ID with any value. This is what Google+ notifications do.
  • change the sender email (you can use From: info+randomstring@example.com). This is what Facebook notifications do.

The threading will be made if you force it with Reference or Reply-To.

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