Creator

Install msmtp

sudo apt update
sudo apt install msmtp msmtp-mta ca-certificates

Generate a Gmail App Password

  1. Log in to your Google Account.
  2. Go to Security and enable 2-Step Verification (if not already enabled).
  3. Search for App passwords in your account search bar.
  4. Create a new app password (e.g., name it “diskha”).
  5. Copy the 16-character app password.

Configure msmtp

Create a .msmtprc file in your home directory. An example is shown below. Be sure to use your email address and password in the file.

# Set default values for all accounts
defaults
auth           on
tls            on
tls_starttls   off
tls_trust_file /etc/ssl/certs/ca-certificates.crt
logfile        ~/.msmtp.log

# Gmail account
account        gmail
host           smtp.gmail.com
port           465
from           your-email@gmail.com
user           your-email@gmail.com
password       your-16-char-app-password

# Set gmail as the default account
account default : gmail

Secure the msmtp configuration file

chmod 600 ~/.msmtprc

Test

Create a simple email message in a text file (e.g. /tmp/test-email.txt):

Subject: Test email from msmtp

Hello! This email was sent via Gmail using msmtp.

Send the test email using msmtp and your new ~/.msmtprc file.

cat /tmp/test-email.txt | msmtp your-email@gmail.com