It's all pretty simple, but all the mail part uses Mailgun routes, which now req...

It's all pretty simple, but all the mail part uses Mailgun routes, which now require subscribing at least to the "Foundation" plan, that costs $35/month.

Fortunately my routes were already set up and still work on the Flex plan; I just can't edit them any more; but they were pretty generic so that's not too much of a problem for me; but it would be a problem for a new implementation.

Also, the code isn't pretty and since I built it for myself, it doesn't have any security feature whatsoever (no login, no sessions, no encryption, nothing).

I don't think I want to deal with all the people who would tell me how bad my code is if I published it... But for me it works.

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That said, sending emails is the easy part; it's dealing with incoming email that requires a better Mailgun plan (not just for routes but for parsing the content of the email).

If you only need a system to send you an email every day you can 1/ open a Flex account with Mailgun (no recurring fee, pay-as-you-go email) and 2/ setup a cronjob with a short script in any language that can do a POST request; here's my example in Python.

    request_url = "https://api.eu.mailgun.net/v3/yourdomain.com/messages"
    request = requests.post(request_url, auth=("api", mailgunKey), data = {
      "from": "sender <reply@yourdomain.com>",
      "to": emails,
      "recipient-variables": json.dumps(recipients),
      "subject": "%recipient.task% [%recipient.day% %recipient.date%]",
      "text": body
      })

The Mailgun API is well documented and fairly simple to use: https://documentation.mailgun.com/en/latest/api-sending.html...

(There are certainly many other providers that do the same thing.)

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PS: I'm surprised of the interest though; last time I talked about it on HN it didn't generate that many replies; someone did indeed mention a similar SaaS that folded for lack of growth. I think it's one of those things where all potential users are already here on HN...