diff --git a/formulaires/gamumail.php b/formulaires/gamumail.php
index 22a49f4..c92ea3c 100644
--- a/formulaires/gamumail.php
+++ b/formulaires/gamumail.php
@@ -302,9 +302,9 @@ function formulaires_gamumail_traiter_dist($slug, $destinataires = 0, $Tclient =
 
 function gamuSend($slug, $options, $destinataires, $Tclient, $Tpdf, $Tfiles, $redirect, &$retour = []) {
 
-	$cc         = _request('cc');
-	$cci        = _request('cci');
-	$repondre_a = _request('repondre_a');
+	$cc         = _request('cc') ?? '';
+	$cci        = _request('cci') ?? '';
+	$repondre_a = _request('repondre_a') ?? '';
 
 	$cc   = explode(',', $cc);
 	$cci  = explode(',', $cci);
diff --git a/inc/envoyer_gamumail.php b/inc/envoyer_gamumail.php
index 9a5f711..f80bc23 100644
--- a/inc/envoyer_gamumail.php
+++ b/inc/envoyer_gamumail.php
@@ -84,8 +84,8 @@ function inc_envoyer_gamumail($slug, $destinataires, $options = [], $Tid_doc_pie
 	$non_vide = function ($elem) {
 		return ($elem != NULL AND $elem != '');
 	};
-	$cc   = array_filter(explode(',', lire_config('gamumail/mail_cc')), $non_vide);
-	$cci  = array_filter(explode(',', lire_config('gamumail/mail_cci')), $non_vide);
+	$cc   = array_filter(explode(',', (lire_config('gamumail/mail_cc') ?? '')), $non_vide);
+	$cci  = array_filter(explode(',', (lire_config('gamumail/mail_cci') ?? '')), $non_vide);
 
 	// si on a plusieurs destinataires et $options['cci' => true] les passer en cci et mettre le compte expéditeur du site en to
 	if (count($pour) > 1 AND isset($options['cci']) AND $options['cci']) {