Using curl to send email

by 
curl --ssl-reqd \
  --url 'smtps://smtp.gmail.com:465' \
  --user '[email protected]:password' \
  --mail-from '[email protected]' \
  --mail-rcpt '[email protected]' \
  --upload-file mail.txt

mail.txt file contents:

From: "User Name" <[email protected]>
To: "John Smith" <[email protected]>
Subject: This is a test

Hi John,
I’m sending this mail with curl thru my gmail account.
Bye!

Additional info:

  1. I’m using curl version 7.21.6 with SSL support.

  2. You don’t need to use the --insecure switch, which prevents curl from performing SSL connection verification. See this online resource for further details.

  3. It’s considered a bad security practice to pass account credentials thru
    command line arguments. Use --netrc-file. See the documentation.

  4. You must turn on access for less secure apps or the newer App passwords.

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