PHP mail() does not work on digitalocean ubuntu 16.04 server

my tools: server= digitalocean domain= godaddy installed apache/2.4.18 php 7.0.30 ubuntu 16.04

i have tried install sendmail and configure it as below:

sudo apt-get install sendmail

and configure the /etc/hosts

sudo nano /etc/hosts

i am sure it contains localhost localhost.localdomain myhostname and i made


yes for all questions in sendmail config. also restarted apache2 with

sudo service apache2 restart

it is not sending mail. can u help me?

i tried send mail with send.php it contains:

$to = '';
$title = 'title of mail';
$content = 'hello from world';
$titles = 'From:' . "\r\n" .
    'Reply-To:' . "\r\n" .
    'X-Mailer: PHP/' .phpversion();
mail($to, $title, $content, $titles);

Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Hello friend!

This email should fail to be delivered at because your server will not be an authorized sender for Microsoft will drop this and consider it a spoofed/spam sender. You can read more about SPF, the underlying function for this, here:

You will want the From email to always be from a domain that you can speak for, so that you can delegate the authority properly.

Kind Regards, Jarland