diff --git a/docker/exim4/update-exim4.conf.conf b/docker/exim4/update-exim4.conf.conf
index fd7b25d54ba460e236fe82be89286fdc641fe570..7c596c3da96baf62c1d557b18345fd84860d5658 100644
--- a/docker/exim4/update-exim4.conf.conf
+++ b/docker/exim4/update-exim4.conf.conf
@@ -29,3 +29,4 @@ dc_use_split_config='false'
 dc_hide_mailname=''
 dc_mailname_in_oh='true'
 dc_localdelivery='maildir_home'
+log_file_path='/var/log/exim4/mainlog'
\ No newline at end of file
diff --git a/module/Application/tests/ApplicationUnitTest/Mail/SendMailTest.php b/module/Application/tests/ApplicationUnitTest/Mail/SendMailTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..ee73c31a62e9fb0c2eaf9ffd9fd9cc39bcf14978
--- /dev/null
+++ b/module/Application/tests/ApplicationUnitTest/Mail/SendMailTest.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace ApplicationUnitTest\Mail;
+
+class SendMailTest extends \PHPUnit_Framework_TestCase
+{
+    public function testSendMail()
+    {
+        $ok = mail('bertrandgauthier.vpc@free.fr', 'test envoi', 'ceci est un test', null, 'O DeliveryMode=b');
+        var_dump($ok);
+        exec('cat /var/log/exim4/mainlog', $output);
+        var_dump(array_pop($output));
+    }
+}