Using SSMTP to Send Email From Linux VPS Command Line Through Gmail Account

System Repository Update
Before we do anything else we should bring the Ubuntu Repository up to date. Type the following command to update Ubuntu System Repository:
sudo apt-get update
Install the ssmtp package:
sudo apt-get install ssmtp
Configure the SSMTP config file.
sudo vi /etc/ssmtp/ssmtp.conf
You can just remove all contents in the original file and just add the following in.
UseSTARTTLS=YES
FromLineOverride=YES
[email protected]
mailhub=smtp.gmail.com:587
[email protected]
[email protected]#
A reverse alias changes the "From" address. This means you can make the email appear as if it's from a different email address. I personally haven't done this but if it's something you'd like to do then edit the revaliases file as follows:
sudo vim /etc/ssmtp/revaliases
Then add a new line similar to this:
root:[email protected]:smtp.gmail.com:587
Test sSMTP
Once you've configurd sSMTP it's time to try and send an email. The simplest way to do this is to run sSMTP in a terminal with a recipient email address. So:
ssmtp [email protected]
To: [email protected]From: [email protected]Subject: test emailHello World!
[email protected]:~$ ssmtp [email protected] hello test test ^D (Ctrl+D to end the edit content) [email protected]:~$ ls Mailx.sh dead.letter email.txt[email protected]:~$ more email.txt
From: [email protected] Subject: test email Hello World!
[email protected]:~$ ssmtp [email protected] < email.txt [email protected]:~$ [email protected]:~$ cat email.txt Subject: Sending email using ssmtp Testing email body [email protected]:~$
Notes: Google Account Requirement
1. If you are getting authentication error:
- Open your Google Account.
- In the "Security" section, select 2-Step Verification. You might need to sign in.
- Select Turn off.
- A pop-up window will appear to confirm that you want to turn off 2-Step Verification. Select Turn off.
- Allow less secure apps: If you don't use 2-Step Verification, you might need to allow less secure apps to access your account. (Go to https://www.google.com/settings/security/lesssecureapps and Turn On this feature)
- Go to https://g.co/allowaccess from a different device you have previously used to access your Google account and follow the instructions. (Go to https://accounts.google.com/DisplayUnlockCaptcha and click Continue.)
- Try signing in again from the blocked app
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