defaults
maildomain example.net
syslog LOG_MAIL
aliases /etc/aliases
account default
host mail.example.net
port 587
from srv7@example.net
auth on
user user@example.net
password ********
tls on
tls_starttls on
#tls_certcheck off
tls_fingerprint DB:A0:2A:07:00:F9:E3:23:7D:07:E7:52:3C:95:9D:E6:7E:12:54:3F
Your alias file
# /etc/aliases
default: me@example.net
A php script to send mail
#!/usr/bin/php
<?php
define('TAB',"\t");
$user = $_SERVER['LOGNAME'];
$host = exec("hostname -f");
$from = $user.'@'.$host;
$to = 'sweety@example.net';
$subject = 'Testing msmtp';
$message = 'hello from '. $host;
$headers = 'From: '.$from.PHP_EOL;
$headers .= 'X-Mailer: msmtp + PHP '.phpversion();
if(mail($to, $subject, $message, $headers))
{
echo PHP_EOL.TAB.'Your message was successfully accepted for delivery'.PHP_EOL.PHP_EOL;
}else{
echo PHP_EOL.TAB.'Your message was not accepted for delivery!'.PHP_EOL.PHP_EOL;
}
?>