📬 Notification emails unwanted threading

[ryanburnette]

This isn't in the library, but it's relevant.

I have still never figured out how to add a header to emails to separate the threads. I'm still including a portion of my secret in the subject line to keep subsequent notify emails from threading.

If you solve this problem, please show me how you did it.

[coolaj86]

I'm glad you asked. This was a good find:

• https://stackoverflow.com/a/25435722/151312

These alone won't do:

• https://stackoverflow.com/a/3621073/151312
• https://cr.yp.to/immhf/thread.html

request({
  url: `https://api.mailgun.net/v3/${domain}/messages`,
  auth: `api:${apiKey}`,
  form: {
    from: "[email protected]",
    "h:Reply-To": "[email protected]",
    "h:Message-ID": rnd() + "@msgs.rootprojects.org",
    "h:X-Entity-Ref-ID": rnd() + "@msgs.rootprojects.org",
    "h:References": rnd() + "@msgs.rootprojects.org",
    to: "[email protected]",
    subject: "Hey Now, Hey Now",
    html: `${preHeader}<p>Don't thread this over.</p>`,
    text: "Don't thread this over.",
  },
})

[ryanburnette]

This one deserves its own video.

[ryanburnette]

It works!

[coolaj86]

Added to https://therootcompany.com/blog/send-email-with-mailgun-and-nodejs/

Leaving open because this might make for a good video tonight.