Feb 23, 2014

0 Sendmail sending mail from Gmail

Sendmail with Gmail - is one of easiest ways to send mail with system notifications.

This Sendmail&Gmail configuration is tested and works on Ubuntu 11.04 - 14.10.

# At first we must setup sendmail and utilities.
sudo apt-get install sendmail sasl2-bin

# Sharutils are used to send binary files as attachments.
sudo apt-get install sharutils

sudo /usr/sbin/sendmail -d0.1 -bv root

# In output find , SASLv2 and STARTTLS. If they are present, all is ok.

# Now move to mail directory : /etc/mail
cd /etc/mail

# Create file with name authinfo
sudo touch authinfo
sudo nano authinfo

Add folowing lines. Edit them to match your e-mail and password.
AuthInfo:smtp.gmail.com "U:username" "I:username@gmail.com" "P:password" "M:PLAIN"
AuthInfo:smtp.gmail.com:587 "U:username" "I:username@gmail.com" "P:password" "M:PLAIN"

Save configuration by : Ctrl+O , Ctrl+X

Execute command :
sudo makemap -r hash authinfo.db < authinfo

Now we have to make sasl.m4 file in /etc/mail/sasl/ directory.

For that, execute in terminal :

When that’s done, we need to add our configuration to sendmail.mc file.
sudo nano sendmail.mc

Scroll to the end of file and add these lines :

dnl #
FEATURE(`authinfo', `hash /etc/mail/authinfo.db')dnl
define(`RELAY_MAILER_ARGS', `TCP $h 587')dnl
define(`ESMTP_MAILER_ARGS', `TCP $h 587')dnl
dnl #
dnl # Default Mailer setup

Save configuration file: Ctrl+O , Ctrl+X

Now we need to reconfigure sendmail again.
To do that , execute in terminal :

sudo make
/etc/init.d/sendmail reload

That’s all. Your mail relay is ready for sending mail.

To send mail you can use following commands :

  • This will send a e-mail with message „This is Test” , subject will be „Subject about subject”  to e-mail address username@gmail.com. 
echo "This is Test" | sudo mail -s "Subject about subject" username@gmail.com

  • This will send a e-mail with message from text file mail_report.txt , subject will be „Daily Report”  to e-mail address username@gmail.com.
mail -s "Daily Report" username@gmail.com  < /home/janis/mail_report.txt

  • This will send a e-mail with attached text file mail_report.txt , subject will be „Daily Report”  to e-mail address username@gmail.com
For this we installed Sharutils earlier. Uuencode is a part of this package

uuencode mail_report.txt mail_report.txt | mail -s "Daily Report" username@gmail.com



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