diff --git a/htdocs/societe/class/societe.class.php b/htdocs/societe/class/societe.class.php
index ee2d71f6d12..a3f19f6c183 100644
--- a/htdocs/societe/class/societe.class.php
+++ b/htdocs/societe/class/societe.class.php
@@ -4008,6 +4008,111 @@ class Societe extends CommonObject
 		return -1;
 	}
 
+	/**
+	 *  Return number of mass Emailing received by this contacts with its email
+	 *
+	 *  @return       int     Number of EMailings
+	 */
+	public function getNbOfEMailings()
+	{
+		$sql = "SELECT count(mc.email) as nb";
+		$sql .= " FROM ".MAIN_DB_PREFIX."mailing_cibles as mc, ".MAIN_DB_PREFIX."mailing as m";
+		$sql .= " WHERE mc.fk_mailing=m.rowid AND mc.email = '".$this->db->escape($this->email)."' ";
+		$sql .= " AND m.entity IN (".getEntity($this->element).") AND mc.statut NOT IN (-1,0)"; // -1 error, 0 not sent, 1 sent with success
+
+		$resql = $this->db->query($sql);
+		if ($resql) {
+			$obj = $this->db->fetch_object($resql);
+			$nb = $obj->nb;
+
+			$this->db->free($resql);
+			return $nb;
+		} else {
+			$this->error = $this->db->error();
+			return -1;
+		}
+	}
+
+	/**
+	 *  Set "blacklist" mailing status
+	 *
+	 *  @param	int		$no_email	1=Do not send mailing, 0=Ok to recieve mailling
+	 *  @return int					<0 if KO, >0 if OK
+	 */
+	public function setNoEmail($no_email)
+	{
+		$error = 0;
+
+		// Update mass emailing flag into table mailing_unsubscribe
+		if ($this->email) {
+			$this->db->begin();
+
+			if ($no_email) {
+				$sql = "SELECT COUNT(rowid) as nb FROM ".MAIN_DB_PREFIX."mailing_unsubscribe WHERE entity IN (".getEntity('mailing', 0).") AND email = '".$this->db->escape($this->email)."'";
+				$resql = $this->db->query($sql);
+				if ($resql) {
+					$obj = $this->db->fetch_object($resql);
+					$noemail = $obj->nb;
+					if (empty($noemail)) {
+						$sql = "INSERT INTO ".MAIN_DB_PREFIX."mailing_unsubscribe(email, entity, date_creat) VALUES ('".$this->db->escape($this->email)."', ".getEntity('mailing', 0).", '".$this->db->idate(dol_now())."')";
+						$resql = $this->db->query($sql);
+						if (!$resql) {
+							$error++;
+							$this->error = $this->db->lasterror();
+							$this->errors[] = $this->error;
+						}
+					}
+				} else {
+					$error++;
+					$this->error = $this->db->lasterror();
+					$this->errors[] = $this->error;
+				}
+			} else {
+				$sql = "DELETE FROM ".MAIN_DB_PREFIX."mailing_unsubscribe WHERE email = '".$this->db->escape($this->email)."' AND entity IN (".getEntity('mailing', 0).")";
+				$resql = $this->db->query($sql);
+				if (!$resql) {
+					$error++;
+					$this->error = $this->db->lasterror();
+					$this->errors[] = $this->error;
+				}
+			}
+
+			if (empty($error)) {
+				$this->no_email = $no_email;
+				$this->db->commit();
+				return 1;
+			} else {
+				$this->db->rollback();
+				return $error * -1;
+			}
+		}
+
+		return 0;
+	}
+
+	/**
+	 *  get "blacklist" mailing status
+	 * 	set no_email attribut to 1 or 0
+	 *
+	 *  @return int					<0 if KO, >0 if OK
+	 */
+	public function getNoEmail()
+	{
+		if ($this->email) {
+			$sql = "SELECT COUNT(rowid) as nb FROM ".MAIN_DB_PREFIX."mailing_unsubscribe WHERE entity IN (".getEntity('mailing').") AND email = '".$this->db->escape($this->email)."'";
+			$resql = $this->db->query($sql);
+			if ($resql) {
+				$obj = $this->db->fetch_object($resql);
+				$this->no_email = $obj->nb;
+				return 1;
+			} else {
+				$this->error = $this->db->lasterror();
+				$this->errors[] = $this->error;
+				return -1;
+			}
+		}
+		return 0;
+	}
 
 	// phpcs:disable PEAR.NamingConventions.ValidFunctionName.ScopeNotCamelCaps
 	/**