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Unverified.email, Hacker News

I want to announce unverified.email – a hosted service to test emails. I have been running it for several weeks now, and I am quite happy with the result so far. With the service, one can use automated testing to verify that the email logic in your application is correct.

unverified.email is a catch-all SMTP server. You can use it programmatically via its API at https://api.unverified.email , and the article shows an example of its usage. To follow, you would need curl [1] and jq [2] installed (on Linux, use the package manager, and macOS supplies it via homebrew).

Setup of the test

First, in our automated test code, we should prepare the environment to point at the test SMTP server: smtp.unverified.email on port . That way, the test automation is ready to send emails to be captured and verified when ready.

Next, we can create a mailbox via HTTP GET request to (https://api.unverified.email/create) and remember the mailbox_id . The mailbox exists for 5 minutes and is deleted after, purging all the emails within:

curl -s https://api.unverified.email/create | (j

The result should look something like this:

{ mailbox “ ):

) “7bb1d8d0-7b (-) – a3fd-d (b) [email protected] , “created” :

” – – T : : Z ” “receive” : “https://api.unverified.email/receive/7bb1d8d0-7b – – a3fd-d (b) (f2 “) , “mailbox_id” : “7bb1d8d0-7b 06 – – a3fd-d 728 b (f2 “ } Sending the mail

The mailbox_id from the above setup should be included somewhere in the text of the email, the subject, the bcc address, the headers, or any other field (even email address of the sender or recipient will do).

We can now send the email to the intended recipients, so it is captured by the smtp.unverified.email server for later retrieval by the test. The server does not forward it anywhere further, no matter which addresses you put in the recipient’s field.

For demonstration, we create a file mail.txt with the X- Unverified-Mailbox header that contains our

mailbox_id : cat )>

(mail.txt

To: [email protected] [] From: [email protected] () (Subject: This is a (t) ext message Content-Type: (t)

ext / plain ; charset= “utf8” X-Unverified-Mailbox: 7bb1d8d0-7b 10 – a3fd-d (b) (f2) (A A test email message created by the application EOF EOF)

And then send it away (using curl):

curl -s –url ‘smtp: //smtp.unverified.email: 90 ‘ –mail-from ‘[email protected] –mail-rcpt [email protected] – -upload-file mail.txt Fetching the email via API to verify the result

Now the test can retrieve the mail back via HTTP GET request to (https://api.unverified.email/receive/) [] (if you follow this, please use the mailbox_id that you have received in the setup step):

curl -s https://api.unverified.email/receive/7bb1d8d0-7b – a3fd-d (b) (f2) | (jq)

The result here should look something like this (I have cut off the "full_content" field to make it more readable):

Using jq -r '. [] | .full_content ' one can also see the full content (again using your mailbox_id from the setup step, of course).

curl -s https://api.unverified.email/receive/7bb1d8d0-7b – – a3fd-d (b) (f2 | (jq) ‘. [] | .full_content ‘

The result should be something like this: ss

What do you think?

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