How to install sSMTP in Ubuntu linux

SSMTP is a program which conveys email from a nearby PC to a designed mailhost (mailhub). It’s anything but a mail server (like component rich mail server sendmail) and doesn’t get mail, extend nom de plumes or deal with a line. One of its essential uses is for sending robotized email (like framework alarms) off your machine and to an outside email address.

In this post, We will install ssmtp on ubuntu 16.04 and 18.04 LTS

Step 1: Update System

To update the system, You need update and upgrade the ubuntu by using the command.

sudo apt-gte update && sudo apt-get upgrade -y

Step 2: Install SSMTP

After upgrade the system, Now we are ready to install ssmtp by using the command.

sudo apt-get install ssmtp -y

Step 3: Uninstall SSMTP

You need to use the given command to uninstall the ssmtp package from ubuntu machine.

sudo apt-get remove ssmtp -y

Step 4: Configuration of SMTP

Here we are going to confonfigure Gmail’s smtp server with ssmtp, You need to open the ssmtp mail configuration file by using the given command.

sudo vim /etc/ssmtp/ssmtp.conf

Add the following code in the ssmtp.conf file.


You need to update the credentions with yours, Now save and exit from the vim text editor, Open the another ssmtp conf file by using the given command to configure for email address and smtp address.

sudo vim /etc/ssmtp/revaliases

Add the given code.

Save and exit from the editor, Here our Gmail smtp configuration done.

Step 5: Testing

You need to create a txt file with the following content to verify the sSMTP is working or not, Follow given step for the same.

vim msg.txt

Add the following message.

Subject: test email

Hello World!

Save and exit from the text editor and lets execute the command to get the email from sSMTP.

/usr/sbin/ssmtp < msg.txt


We have successfully configure Gmail’s smtp with sSMTP in our Ubuntu server.

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How to install sSMTP in Ubuntu linux

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