diff --git a/base/mailshot.php b/base/mailshot.php
index a3a7c86..d70091e 100644
--- a/base/mailshot.php
+++ b/base/mailshot.php
@@ -39,6 +39,7 @@ function mailshot_declarer_tables_objets_sql($tables) {
 			"html" => "longtext NOT NULL DEFAULT ''",
 			"texte" => "longtext NOT NULL DEFAULT ''",
 			"listes" => "text NOT NULL DEFAULT ''",
+			"graceful"   => "tinyint(1) NOT NULL DEFAULT 0",
 			"from_name" => "text NOT NULL DEFAULT ''",
 			"from_email" => "text NOT NULL DEFAULT ''",
 			"total"   => "bigint(21) NOT NULL",
diff --git a/formulaires/newsletter_send.html b/formulaires/newsletter_send.html
index 9537379..bd58ca3 100644
--- a/formulaires/newsletter_send.html
+++ b/formulaires/newsletter_send.html
@@ -33,6 +33,17 @@
 					</select>
 					<input type="submit" name="envoi" class="submit" value="<:newsletter:bouton_envoyer:>" name="test" />
 				</li>
+				#SET{name,resend}#SET{obli,''}#SET{defaut,''}#SET{erreurs,#ENV**{erreurs}|table_valeur{#GET{name}}}
+				<li class="editer pleine_largeur editer_[(#GET{name})][ (#GET{obli})][ (#GET{erreurs}|oui)erreur]">[
+					<span class='erreur_message'>(#GET{erreurs})</span>
+					]<div class="choix">
+						#SET{val,non}
+						<input type="hidden" name="#GET{name}" value="#GET{val}" />
+						#SET{val,oui}
+						<input type="checkbox" name="#GET{name}" class="checkbox" id="#GET{name}_#GET{val}" value="#GET{val}"[(#ENV{#GET{name},#GET{defaut}}|=={#GET{val}}|oui)checked="checked"] />
+						<label for="#GET{name}_#GET{val}">[(#GET{fl}|concat{':label_',#GET{name},'_',#GET{val}}|_T)]</label>
+					</div>
+				</li>
 				#SET{name,date_start}#SET{obli,''}#SET{defaut,''}#SET{erreurs,#ENV**{erreurs}|table_valeur{#GET{name}}}
 				<li class="editer editer_[(#GET{name})][ (#GET{obli})][ (#GET{erreurs}|oui)erreur]">
 					<label for="planifie">
diff --git a/formulaires/newsletter_send.php b/formulaires/newsletter_send.php
index a7cae82..b950f22 100644
--- a/formulaires/newsletter_send.php
+++ b/formulaires/newsletter_send.php
@@ -17,6 +17,7 @@ function formulaires_newsletter_send_charger_dist($id_newsletter,$mode_test=fals
 		'email_test' => $GLOBALS['visiteur_session']['email'],
 		'liste' => '',
 		'planifie' => '',
+		'resend' => 'non',
 		'date_start_jour' => '',
 		'date_start_heure' => '',
 		'_mode_test' => $mode_test?$mode_test:'',
@@ -122,6 +123,9 @@ function formulaires_newsletter_send_traiter_dist($id_newsletter,$mode_test=fals
 			$h = dater_recuperer_heure_saisie(_request('date_start_heure'));
 			$options['date_start'] = sql_format_date($d[0], $d[1], $d[2], $h[0], $h[1]);
 		}
+		if (_request('resend')!=='oui'){
+			$options['graceful'] = true;
+		}
 
 		$bulkstart = charger_fonction("bulkstart","newsletter");
 		if ($id_mailshot = $bulkstart($id_newsletter, $listes, $options)){
diff --git a/inc/mailshot.php b/inc/mailshot.php
index 4b9f55b..37cdff2 100644
--- a/inc/mailshot.php
+++ b/inc/mailshot.php
@@ -173,31 +173,67 @@ function mailshot_envoyer_lot($nb_max=5,$offset=0){
 			foreach($dests as $d){
 				if (time()>_MAILSHOT_MAX_TIME) return $nb_restant;
 				$s = $subscriber($d['email'],array('listes'=>$listes));
-				spip_log("mailshot_envoyer_lot #".$shoot['id_mailshot']."/".$d['email']." send","mailshot");
-				$erreur = $send($s, $corps, $options);
-				$try = $d['try']+1;
-				if ($erreur){
-					if ($try>=_MAILSHOT_MAX_TRY
-						OR preg_match(",@example\.org$,i",$s['email'])
-					  OR defined('_TEST_EMAIL_DEST')){
-						sql_updateq("spip_mailshots_destinataires",array('statut'=>'fail','try'=>$try,'date'=>date('Y-m-d H:i:s')),"id_mailshot=".intval($shoot['id_mailshot'])." AND email=".sql_quote($d['email']));
-						sql_update("spip_mailshots",array("current"=>"current+1","failed"=>"failed+1"),"id_mailshot=".intval($shoot['id_mailshot']));
-						spip_log("mailshot_envoyer_lot #".$shoot['id_mailshot']."/".$d['email']." : Erreur [$erreur] / failed apres $try essais","mailshot"._LOG_ERREUR);
-						// si c'est un fail max_try verifier et desinscrire eventuellement
-						if ($try>1){
-							mailshot_verifier_email_fail($d['email']);
+				$done = false;
+				if (!$done = mailshot_verifier_email_envoi_bloque($d['email'], $s, $shoot)) {
+					spip_log("mailshot_envoyer_lot #".$shoot['id_mailshot']."/".$d['email']." send","mailshot");
+					$erreur = $send($s, $corps, $options);
+					$try = $d['try']+1;
+					if ($erreur){
+						if ($try>=_MAILSHOT_MAX_TRY
+							OR preg_match(",@example\.org$,i",$s['email'])
+						  OR defined('_TEST_EMAIL_DEST')){
+							$done = array(
+								'fail' => true,
+								'statut' => 'fail',
+								'try' => $try,
+								'date'=>date('Y-m-d H:i:s'),
+								'log' => "ERREUR [$erreur] / failed apres $try essais",
+							);
+							// si c'est un fail max_try verifier et desinscrire eventuellement
+							if ($try>1){
+								mailshot_verifier_email_fail($d['email']);
+							}
+						}
+						else {
+							$done = array(
+								'try' => $try,
+								'date'=>date('Y-m-d H:i:s'),
+								'log' => "INFO Probleme [$erreur] (essai $try)",
+							);
 						}
 					}
 					else {
-						sql_updateq("spip_mailshots_destinataires",array('try'=>$try,'date'=>date('Y-m-d H:i:s')),"id_mailshot=".intval($shoot['id_mailshot'])." AND email=".sql_quote($d['email']));
-						spip_log("mailshot_envoyer_lot #".$shoot['id_mailshot']."/".$d['email']." : Probleme [$erreur] (essai $try)","mailshot"._LOG_INFO_IMPORTANTE);
+						$done = array(
+							'done' => true,
+							'statut'=>'sent',
+							'try'=>$try,
+							'date'=>date('Y-m-d H:i:s'),
+							'log' => "OK",
+						);
 					}
 				}
-				else {
-					$nb_restant--;
-					sql_updateq("spip_mailshots_destinataires",array('statut'=>'sent','try'=>$try,'date'=>date('Y-m-d H:i:s')),"id_mailshot=".intval($shoot['id_mailshot'])." AND email=".sql_quote($d['email']));
-					sql_update("spip_mailshots",array("current"=>"current+1"),"id_mailshot=".intval($shoot['id_mailshot']));
-					spip_log("mailshot_envoyer_lot #".$shoot['id_mailshot']."/".$d['email']." OK","mailshot");
+				if ($done) {
+					if (isset($done['done'])) {
+						$nb_restant--;
+						unset($done['done']);
+						sql_update("spip_mailshots",array("current"=>"current+1"),"id_mailshot=".intval($shoot['id_mailshot']));
+					}
+					if (isset($done['fail'])) {
+						unset($done['fail']);
+						sql_update("spip_mailshots",array("current"=>"current+1","failed"=>"failed+1"),"id_mailshot=".intval($shoot['id_mailshot']));
+					}
+					if (isset($done['log'])) {
+						$loglevel = '';
+						if (strncmp($done['log'], 'ERREUR', 6) == 0) {
+							$loglevel = _LOG_ERREUR;
+						}
+						elseif (strncmp($done['log'], 'INFO', 4) == 0) {
+							$loglevel = _LOG_INFO_IMPORTANTE;
+						}
+						spip_log("mailshot_envoyer_lot #".$shoot['id_mailshot']."/".$d['email']." : " . $done['log'], "mailshot" . $loglevel);
+						unset($done['log']);
+					}
+					sql_updateq("spip_mailshots_destinataires", $done,"id_mailshot=".intval($shoot['id_mailshot'])." AND email=".sql_quote($d['email']));
 				}
 				$nb_max--;
 			}
@@ -222,6 +258,61 @@ function mailshot_envoyer_lot($nb_max=5,$offset=0){
 	return 0; // plus rien a envoyer sur ce lot
 }
 
+/**
+ * Verifie avant nouvel envoi un email et bloque un envoi si besoin
+ *
+ * @param string $email
+ * @param array $subscriber
+ * @param array $shoot
+ * @return array|bool
+ */
+function mailshot_verifier_email_envoi_bloque($email, $subscriber, $shoot) {
+	static $envois_idem = array();
+
+	if (preg_match(",@example\.org$,i",$subscriber['email'])) {
+		return array(
+			'fail' => true,
+			'statut' => 'fail',
+			'date' => date('Y-m-d H:i:s'),
+			'log' => "INFO Envoi BLOQUE Email obfusque ".$subscriber['email']."",
+		);
+	}
+	if (_TEST_EMAIL_DEST) {
+		$erreur = _T('mailshot:erreur_envoi_mail_force_debug',array('email'=>_TEST_EMAIL_DEST));
+		return array(
+			'fail' => true,
+			'statut' => 'fail',
+			'date' => date('Y-m-d H:i:s'),
+			'log' => "INFO Envoi BLOQUE $erreur",
+		);
+	}
+
+	if ($shoot['graceful']) {
+		// trouver tous les envois pour le meme id
+		if (!isset($envois_idem[$shoot['id_mailshot']])) {
+			$idem = sql_allfetsel('id_mailshot', 'spip_mailshots', 'id='.sql_quote($shoot['id'],'','text'));
+			$envois_idem[$shoot['id_mailshot']] = array_column($idem, 'id_mailshot');
+		}
+		if ($last = sql_fetsel('*', 'spip_mailshots_destinataires',
+			array(
+				'email=' . sql_quote($email),
+				sql_in('statut', array('todo', 'fail'), 'NOT'),
+				sql_in('id_mailshot', $envois_idem[$shoot['id_mailshot']]),
+			),'', 'date DESC', '0,1')) {
+			// on a trouve un envoi deja fait a la meme newsletter, on passe notre tour pout celui-ci
+			$done = array(
+				'done' => true,
+				'statut' => $last['statut'],
+				'date' => $last['date'],
+				'log' => "INFO Envoi BLOQUE newsletter #".$shoot['id']." deja envoyee a $email par mailshot#" . $last['id_mailshot'] . " / " . $last['date']
+			);
+			return $done;
+		}
+	}
+
+	return false;
+
+}
 
 /**
  * Verifier un email en fail et si plus de N fails consecutifs le desabonner (email foireux)
diff --git a/lang/mailshot_fr.php b/lang/mailshot_fr.php
index fd779f4..15d03f8 100644
--- a/lang/mailshot_fr.php
+++ b/lang/mailshot_fr.php
@@ -64,6 +64,7 @@ $GLOBALS[$GLOBALS['idx_lang']] = array(
 	'label_from' => 'Envoyeur',
 	'label_html' => 'Version HTML',
 	'label_listes' => 'Listes',
+	'label_graceful' => 'Uniquement les destinataires qui n\'ont pas déjà reçu ce contenu',
 	'label_mailer_defaut' => 'Utiliser le même service d’envoi que pour les autres mails',
 	'label_mailer_defaut_desactive' => 'Impossible : aucun service d’envoi d’email n’est configuré',
 	'label_mailer_mailjet' => 'Mailjet',
diff --git a/lang/newsletter_fr.php b/lang/newsletter_fr.php
index 44ec7ce..c3dd931 100644
--- a/lang/newsletter_fr.php
+++ b/lang/newsletter_fr.php
@@ -21,6 +21,7 @@ $GLOBALS[$GLOBALS['idx_lang']] = array(
 	'label_email_test' => 'à l\'adresse email',
 	'label_liste' => 'aux abonnés de ',
 	'label_date_start' => 'Planifier l\'envoi',
+	'label_resend_oui' => 'Envoyer à nouveau aux destinataires qui l\'ont déjà reçue',
 
 );
 
diff --git a/mailshot_administrations.php b/mailshot_administrations.php
index 9f5c36d..38ba5cf 100644
--- a/mailshot_administrations.php
+++ b/mailshot_administrations.php
@@ -60,6 +60,9 @@ function mailshot_upgrade($nom_meta_base_version, $version_cible) {
 	$maj['0.3.5'] = array(
 		array('maj_tables', array('spip_mailshots')),
 	);
+	$maj['0.3.6'] = array(
+		array('maj_tables', array('spip_mailshots')), // option graceful
+	);
 
 	include_spip('base/upgrade');
 	maj_plugin($nom_meta_base_version, $version_cible, $maj);
diff --git a/newsletter/bulkstart.php b/newsletter/bulkstart.php
index 4226517..5c81287 100644
--- a/newsletter/bulkstart.php
+++ b/newsletter/bulkstart.php
@@ -22,13 +22,14 @@ include_spip("inc/config");
  * @param array $options
  *   string statut : statut par defaut
  *   string date_start : date de debut d'envoi (dans le futur)
+ *   bool graceful : ne pas envoyer aux destinataires qui on déjà reçu ce contenu
  * @return int
  *   0 si echec ou id de l'envoi sinon
  */
 function newsletter_bulkstart_dist($corps,$listes = array(),$options=array()){
 	// TODO : recuperer la limite de rate d'apres la config
 	$now = date('Y-m-d H:i:s');
-	$defaut = array('statut'=>'processing','date_start'=>$now);
+	$defaut = array('statut'=>'processing','date_start'=>$now, 'graceful'=>0);
 	if (isset($options['date_start'])){
 		if (strtotime($options['date_start'])>time()) {
 			$defaut['statut'] = 'init';
@@ -75,6 +76,7 @@ function newsletter_bulkstart_dist($corps,$listes = array(),$options=array()){
 		'html' => $corps['html'],
 		'texte' => $corps['texte'],
 		'listes' => implode(',',$listes),
+		'graceful' => $options['graceful'],
 		'from_name' => $from_name,
 		'from_email' => $from_email,
 		'total' => $count,
diff --git a/paquet.xml b/paquet.xml
index 0dd8d6d..e8f579e 100644
--- a/paquet.xml
+++ b/paquet.xml
@@ -1,12 +1,12 @@
 <paquet
 	prefix="mailshot"
 	categorie="communication"
-	version="1.26.1"
+	version="1.27.0"
 	etat="stable"
 	compatibilite="[3.0.5;3.2.*]"
 	logo="prive/themes/spip/images/mailshot-32.png"
 	documentation="https://contrib.spip.net/mailshot"
-	schema="0.3.5"
+	schema="0.3.6"
 >
 
 	<nom>MailShot</nom>
diff --git a/prive/objets/contenu/mailshot.html b/prive/objets/contenu/mailshot.html
index 68654cc..13f52e0 100644
--- a/prive/objets/contenu/mailshot.html
+++ b/prive/objets/contenu/mailshot.html
@@ -16,10 +16,13 @@
 </div>]
 ]
 
-[<div class="champ contenu_listes[ (#LISTES*|strlen|?{'',vide})]">
+[[(#BOITE_OUVRIR{#VAL{mailshot:label_listes}|_T|concat{' ',#GRACEFUL|?{<small class="graceful"><:mailshot:label_graceful:></small>}}})]
+<div class="champ contenu_listes[ (#LISTES*|strlen|?{'',vide})]">
 	<div class='label'><:mailshot:label_listes:> : </div>
 	<span dir='#LANG_DIR' class='#EDIT{listes} listes'>(#LISTES|mailshot_affiche_nom_liste)</span>
-</div>]
+</div>
+#BOITE_FERMER
+]
 
 <div class="champ contenu_from[ (#FROM_EMAIL*|strlen|?{'',vide})]">
 	<div class='label'><:mailshot:label_from:> : </div>
diff --git a/prive/style_prive_plugin_mailshot.html b/prive/style_prive_plugin_mailshot.html
index 7670790..6b32518 100644
--- a/prive/style_prive_plugin_mailshot.html
+++ b/prive/style_prive_plugin_mailshot.html
@@ -11,9 +11,13 @@
 .formulaire_newsletter_send .editer_liste .select {width: 20em;}
 .formulaire_newsletter_send .editer_liste .submit {float: #ENV{right}}
 
+.formulaire_newsletter_send .editer_resend {padding-top: 0;}
+.formulaire_newsletter_send .editer_resend .choix {padding: 0;background: none;border:0 !important;}
+.formulaire_newsletter_send .editer_resend .choix label {margin-left: 0}
+
 .formulaire_newsletter_send .editer_date_start {padding-top:0;}
 .formulaire_newsletter_send .editer_date_start label {width: auto}
-.formulaire_newsletter_send .editer_date_start label input.checkbox {margin-left:0;}
+.formulaire_newsletter_send .editer_date_start label input.checkbox {}
 
 .formulaire_newsletter_send .liste-objets.mailshots {margin:1em 0;}
 .formulaire_newsletter_send .mailshots .sujet {display: none;}
@@ -21,6 +25,11 @@
 
 .mailshot #wysiwyg {margin-bottom: 2.0775em;padding:0;}
 .mailshot #wysiwyg .label {display: inline;}
+.mailshot #wysiwyg small.graceful {font-weight: normal}
+.mailshot #wysiwyg small.graceful::before {content:'(';display: inline}
+.mailshot #wysiwyg small.graceful::after {content:')';display: inline}
+
+.mailshot #wysiwyg .contenu_listes .label {display: none;}
 .mailshot #wysiwyg .contenu_avancement,
 .mailshot #wysiwyg .contenu_html,
 .mailshot #wysiwyg .contenu_texte {margin-bottom: 3em;}