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Configure Amazon Linux server to send SMTP emails using gmail

1)  Make sure your hostname reflects your public dns record

We edited our DNS to have a public dns of ""

So, we edited key file:

sudo nano /etc/sysconfig/network

and did a "sudo reboot"

2) Install SSMTP

sudo yum install ssmtp

3)  Configure ssmtp.conf

a) sudo nano /etc/ssmtp/ssmtp.conf

b)  Change:

4)  If you have problems, turn on debug mode

In ssmtp.conf, put first line:   Debug=Yes

It will log everything to:

sudo nano /var/log/maillog

5)  Edit  ./etc/ssmtp/revaliases

root:Devin Johnson<>

6)   Edit php.ini

a)  sudo nano /etc/.php.ini

b) Search on "mail function"

c)  Change sendmail_path to point to ssmtp

sendmail_path = /usr/sbin/ssmtp -t -f '' 

6)  If you can send emails, but the name of the "from" email is Apache, add this to your PHP:

$headers = 'From: Devin Johnson<>' . "\r\n" .
    'Reply-To:' . "\r\n" .
    'X-Mailer: PHP/' . phpversion();
    mail($email,$subject,$strBody, $headers);