I'd like to set up some sort of mail server to send emails from from my gmail account to another email. How can I do this?

1 Answer 1


First, install sSMTP, since in this instance postfix is overkill. Yes, this will remove postfix. Do we care? Not really.

sudo apt-get install ssmtp
  1. Configure sSMTP by editing /etc/ssmtp/ssmtp.conf
#Config file for sSMTP sendmail
# The person who gets all mail for userids < 1000
# Make this empty to disable rewriting.
#I recommend setting this 


# Where will the mail seem to come from?

#The full hostname
hostname=[some hostname here]

# 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
# This is optional if you're going to use revaliases - I didn't

Now, we need to set permissions on /etc/ssmtp/ssmtp.conf to help (it isn't foolproof) protect your plaintext password.

sudo chown root:nagios /etc/ssmtp/ssmtp.conf
sudo chmod 640 /etc/ssmtp/ssmtp.conf

Restart nagios and you should be set.

sudo service nagios3 restart
  • Any chance you could add instructions for postfix also?
    – user66001
    Aug 10, 2014 at 21:46
  • @user66001: Installing and configuring postfix was neither requested nor needed by the OP. There are plenty of (great) answers for that already.
    – MestreLion
    Mar 31, 2021 at 23:24
  • As of 2021, one should use msmtp (or similar) instead of ssmtp, which is now an almost abandoned project.
    – MestreLion
    Mar 31, 2021 at 23:25
  • @MestreLion - The OP wasn't specific about what mail server worked for them, so no harm in asking for the same solution using a different mail server. Instead of suggesting what you take exception to on a 7 year old post(!), and eluding to other answers that I recall looking for an not finding, how about actually linking to these (great) answers you mention. P.S The OP didn't ask for a 2021 update to the solution provided, either...
    – user66001
    Apr 2, 2021 at 4:56
  • @user66001: I didn't mean to be rude or unhelpful. My point was: OP had a very specific and simple scenario, so @jrg was on the spot to say that postfix is overkill for that particular case, and suggested ssmtp. Yes, no harm in asking for a postfix solution, but that would be completely out of the scope for his answer. Postfix is a big deal, and it deserves its own question (and a much longer answer)
    – MestreLion
    Apr 2, 2021 at 8:38

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