A simple script that sends emails from bash using CURL

send_email_with_curl.sh

#!/bin/bash

# Change these details accordingly
SMTP_HOST='smtps://smtp.gmail.com:465'
SENDER_EMAIL='[email protected]'
SENDER_PASSWORD='yourpassword'
RECEIVER_EMAIL='[email protected]'

# Generate body of email in a file
echo "From: $SENDER_EMAIL" > emailbody
echo "To: $RECEIVER_EMAIL" >> emailbody
echo "Subject: This is an example subject" >> emailbody
echo "Date: $(date)" >> emailbody
echo "Hello world" >> emailbody

# Send email. You can change the url according tou your host
curl --url $SMTP_HOST --ssl-reqd \
  --mail-from $SENDER_EMAIL \
  --user "$SENDER_EMAIL:$SENDER_PASSWORD" \
  -T emailbody \
  --mail-rcpt $RECEIVER_EMAIL
# You can add more receivers by repeating the --mail-rcpt argument