Send email from your Raspberry Pi 3

Written by pmd - - no comments

Simple SMTP is a simple MTA (Mail Transport Agent) to deliver mail from a computer to a mail hub (SMTP server). It can be usefull to send result of your Cron jobs.

Install ssmtp:

sudo apt-get install ssmtp

Configure it:

sudo nano /etc/ssmtp/ssmtp.conf

#
# Config file for sSMTP sendmail
#
# The person who gets all mail for userids < 1000
# Make this empty to disable rewriting.
root=username@gmail.com

# The place where the mail goes. The actual machine name is required no
# MX records are consulted. Commonly mailhosts are named mail.domain.com
mailhub=smtp.gmail.com:587

# Where will the mail seem to come from?
#rewriteDomain=

# The full hostname
hostname=raspberrypi
UseSTARTTLS=YES
AuthUser=username
AuthPass=password


# Are users allowed to set their own From: address?
# YES - Allow the user to specify their own From: address
# NO - Use the system generated From: address
FromLineOverride=YES

Configure the account sending the email:

sudo nano /etc/ssmtp/revaliases

# sSMTP aliases
#
# Format:       local_account:outgoing_address:mailhub
#
# Example: root:your_login@your.domain:mailhub.your.domain[:port]
# where [:port] is an optional port number that defaults to 25.

root:username@gmail.com:smtp.gmail.com:587
pi:username@gmail.com:smtp.gmail.com:587

Try to send an email:

echo "email for test" | ssmtp -vvv email@domaine.com

If you use Gmail you might need to allow less secure apps: https://myaccount.google.com/lesssecureapps

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