Sending emails using Gmail and msmtp on Ubuntu / Debian

setup-msmtp-for-gmail.sh

#!/bin/sh
# Sending emails using Gmail and msmtp
# Author: [Josef Jezek](http://about.me/josefjezek)
# Donate: [Gittip](https://www.gittip.com/josefjezek)
# Link: [Gist](https://gist.github.com/6194563)
# Usage: setup-msmtp-for-gmail.sh

sudo apt-get update -q
sudo apt-get install msmtp-mta ca-certificates heirloom-mailx -yq

if command -v zenity >/dev/null; then
  GMAIL_USER=$(zenity --entry --title="Gmail username" --text="Enter your gmail username with domain ([email protected]):")
  GMAIL_PASS=$(zenity --entry --title="Gmail password" --text="Enter your gmail password:" --hide-text)
else
  read -p "Gmail username with domain ([email protected]): " GMAIL_USER
  read -p "Gmail password: " GMAIL_PASS
fi
 
echo # an empty line
 
if [ -z "$GMAIL_USER" ]; then echo "No gmail username given. Exiting."; exit -1; fi
if [ -z "$GMAIL_PASS" ]; then echo "No gmail password given. Exiting."; exit -1; fi

sudo tee /etc/msmtprc >/dev/null <<__EOF
# Accounts will inherit settings from this section
defaults
auth            on
tls             on
tls_certcheck   off
# tls_trust_file  /etc/ssl/certs/ca-certificates.crt
logfile /var/log/msmtp.log

# A first gmail address
account   gmail
host      smtp.gmail.com
port      587
from      $GMAIL_USER
user      $GMAIL_USER
password  $GMAIL_PASS

# A second gmail address
account   gmail2 : gmail
from      [email protected]
user      [email protected]
password  password

# A freemail service
account   freemail
host      smtp.freemail.example
from      [email protected]
user      joe.smith
password  secret

# A provider's service
account   provider
host      smtp.provider.example

# Set a default account
account default : gmail
__EOF

sudo chmod 600 /etc/msmtprc
sudo chown -R www-data:www-data /etc/msmtprc

HOST=$(hostname)

sudo mail -vs "Email relaying configured at ${HOST}" $GMAIL_USER <<__EOF
The postfix service has been configured at host '${HOST}'.
Thank you for using this postfix configuration script.
__EOF
 
echo "I have sent you a mail to $GMAIL_USER"
echo "This will confirm that the configuration is good."
echo "Please check your inbox at gmail."

I am trying on Android to send mail... From PHP
I require to edit msmtp.cnf file for use mail() function I copied configuration code from your shell script. but not working .. for Android. If you know something can you provide info?? Please help sir

Hi, the scripts worked. Thank you for that, but the mail command still doesn't send mails..