Envoi de mails qui devraient être détecté par différents système de sécurité

/etc/hostname - This file in my Ubuntu server has the following content.

myhostname

/etc/mailname - This file in my Ubuntu server has the following content.

mydomainname.tld

/etc/postfix/main.cf - This file in my Ubuntu server has the following lines, among others...

myorigin = /etc/mailname
myhostname = myhostname.mydomainname.tld
mydestination = localhost, myhostname.mydomainname.tld

Server mail distant

echo "This is the message body" | swaks --to someone@gmail.com --from "you@example.com" --server mail.example.com --auth LOGIN --auth-user "you@example.com" --auth-password "abc123" -tls

Mail local

echo "This is the message body" | swaks --to web-mXHiZ4@mail-tester.com --from "you@example.com" 

Server de mail local

echo "This is the message body" | swaks --to web-mXHiZ4@mail-tester.com --from "you@example.com" --server localhost 25

Envoi de mail avec corps de texte dans un fichier :

swaks --to $1 --from $2 --server localhost 25 --body ./test_email.txt

Architecture de postfix (maildrop (pickup) ou smtpd) : http://loic.marrot.free.fr/travaux/images_html/postfix.gif

Envoi de mail via PHP :

# Test via php
<?php
$to      = 'nobody@example.com';
$subject = 'the subject';
$message = 'hello';
$headers = 'From: webmaster@example.com' . "\r\n" .
    'Reply-To: webmaster@example.com' . "\r\n" .
    'X-Mailer: PHP/' . phpversion();

mail($to, $subject, $message, $headers);
?>

Site pour vérifier comment est classé son email : spam, etc...