Centos 6.6 sending email out from your gmail account using ssmtp

Centos 6.6 sending email out from your gmail account using ssmtp

For this example I will say my email gmail address is glen@gmail.com and my gmail password is gmail_password, it is not btw. You will also need to enable/install the epel repos for adding ssmtp and mailx

First uninstall postfix.

# yum remove postfix

Now install ssmtp.

# yum –y install ssmtp mailx

Now edit your  /etc/ssmtp/ssmtp.conf. I removed everything and just added the below in the file.

#  vi /etc/ssmtp/ssmtp.conf

root=glen@gmail.com

mailhub=smtp.gmail.com:587

rewriteDomain=gmail.com

hostname=mycentserver.mydomain.domain

UseTLS=Yes

UseSTARTTLS=Yes

AuthUser=glen@gmail.com

AuthPass=gmail_password

FromLineOverride=YES

# This solved if you get a ssmtp: Cannot open smtp.gmail.com:587 when try to send an email

# if you enabled uncommenting DEBUG=Yes line and your /var/log/maillog show

# SSL not working: certificate verify failed (20) Uncomment the following line but first 

# VERIFY FILE EXISTS 

TLS_CA_File=/etc/pki/tls/certs/ca-bundle.crt

# DEBUG=Yes

Now edit your /etc/ssmtp/revaliases file and add the following.

# vi /etc/ssmtp/revaliases

root:glen@gmail.com:smtp.gmail.com:587

Now run

# alternatives --config mta

And choose the number for sendmail.ssmtp, like below

There is 1 program that provides 'mta'.

  Selection    Command

-----------------------------------------------

*+ 1           /usr/sbin/sendmail.ssmtp

Enter to keep the current selection[+], or type selection number: 1

#

Now send email to your gmail account from Centos cli

# mail -s "Test Subject" glen@gmail.com

Type your message text and on new line press ctrl d to send

Remember to disable/remove your epel repos when done.

The End