diff --git a/lang/es_ES.UTF-8/LC_MESSAGES/help.po b/lang/es_ES.UTF-8/LC_MESSAGES/help.po
index 2eb1f7deee6..fbfaeaab433 100644
--- a/lang/es_ES.UTF-8/LC_MESSAGES/help.po
+++ b/lang/es_ES.UTF-8/LC_MESSAGES/help.po
@@ -766,8 +766,12 @@ msgid "Init script for broker daemon."
 msgstr "Script de inicialización de broker."
 
 #: centreon-web/www/include/Administration/parameters/engine/help.php:35
-msgid "Mailer binary with complete path."
-msgstr "Ruta completa del ejecutable de envío de correos."
+msgid ""
+"Mailer binary with complete path. This define the @MAILER@ macro used in "
+"notification commands."
+msgstr ""
+"Ruta completa del ejecutable de envío de correos. Esto define la macro "
+"@MAILER@ utilizada en los comandos de notificación."
 
 #: centreon-web/www/include/Administration/parameters/engine/help.php:43
 msgid "Maximum number of hosts to show in the Tactical Overview page."
diff --git a/lang/fr_FR.UTF-8/LC_MESSAGES/help.po b/lang/fr_FR.UTF-8/LC_MESSAGES/help.po
index 79db2c99368..5e7853cda61 100644
--- a/lang/fr_FR.UTF-8/LC_MESSAGES/help.po
+++ b/lang/fr_FR.UTF-8/LC_MESSAGES/help.po
@@ -1026,8 +1026,12 @@ msgid "Init script for broker daemon."
 msgstr "Script d'initialisation du broker."
 
 #: centreon-web/www/include/Administration/parameters/engine/help.php:35
-msgid "Mailer binary with complete path."
-msgstr "Chemin complet de l'exécutable d'envoi de mails."
+msgid ""
+"Mailer binary with complete path. This define the @MAILER@ macro used in "
+"notification commands."
+msgstr ""
+"Chemin complet de l'exécutable d'envoi de mails. Ceci définit la variable"
+"@MAILER@ utilisée dans les commandes de notification."
 
 #: centreon-web/www/include/Administration/parameters/engine/help.php:43
 msgid "Maximum number of hosts to show in the Tactical Overview page."
diff --git a/lang/pt_BR.UTF-8/LC_MESSAGES/help.po b/lang/pt_BR.UTF-8/LC_MESSAGES/help.po
index f2563d93141..349267c7081 100644
--- a/lang/pt_BR.UTF-8/LC_MESSAGES/help.po
+++ b/lang/pt_BR.UTF-8/LC_MESSAGES/help.po
@@ -1380,8 +1380,12 @@ msgid "Init script for broker daemon."
 msgstr "Script de inicialização do broker."
 
 #: /home/lgcosta/devel/centreon/centreon/www/include/Administration/parameters/engine/help.php:35
-msgid "Mailer binary with complete path."
-msgstr "Caminho completo do executável de envio de emails."
+msgid ""
+"Mailer binary with complete path. This define the @MAILER@ macro used in "
+"notification commands."
+msgstr ""
+"Caminho completo do executável de envio de emails. Isso define a macro @MAILER@ usado nos "
+"comandos de notificação."
 
 #: /home/lgcosta/devel/centreon/centreon/www/include/Administration/parameters/engine/help.php:43
 msgid "Maximum number of hosts to show in the Tactical Overview page."
diff --git a/lang/pt_PT.UTF-8/LC_MESSAGES/help.po b/lang/pt_PT.UTF-8/LC_MESSAGES/help.po
index af8d990fe79..ae96241f93e 100644
--- a/lang/pt_PT.UTF-8/LC_MESSAGES/help.po
+++ b/lang/pt_PT.UTF-8/LC_MESSAGES/help.po
@@ -767,8 +767,12 @@ msgid "Init script for broker daemon."
 msgstr "Script de inicialização do broker."
 
 #: centreon-web/www/include/Administration/parameters/engine/help.php:35
-msgid "Mailer binary with complete path."
-msgstr "Caminho completo do executável de envio de emails."
+msgid ""
+"Mailer binary with complete path. This define the @MAILER@ macro used in "
+"notification commands."
+msgstr ""
+"Caminho completo do executável de envio de emails. Isso define a macro @MAILER@ usado nos "
+"comandos de notificação."
 
 #: centreon-web/www/include/Administration/parameters/engine/help.php:43
 msgid "Maximum number of hosts to show in the Tactical Overview page."
diff --git a/www/include/Administration/parameters/engine/help.php b/www/include/Administration/parameters/engine/help.php
index 64a4acb01ad..f840d519d3f 100644
--- a/www/include/Administration/parameters/engine/help.php
+++ b/www/include/Administration/parameters/engine/help.php
@@ -32,7 +32,10 @@
  * Mailer path
  */
 
-$help['tip_directory+mailer_binary'] = dgettext('help', 'Mailer binary with complete path.');
+$help['tip_directory+mailer_binary'] = dgettext(
+    'help',
+    'Mailer binary with complete path. This define the @MAILER@ macro used in notification commands.'
+);
 
 /**
  * Tactical Overview