diff --git a/src/Email/EmailConfiguration.php b/src/Email/EmailConfiguration.php
index a810d03..44d9a32 100644
--- a/src/Email/EmailConfiguration.php
+++ b/src/Email/EmailConfiguration.php
@@ -30,5 +30,5 @@ class EmailConfiguration
     {
         $this->type = $type;
     }
-    
+
 }
\ No newline at end of file
diff --git a/src/Email/MailerInterface.php b/src/Email/MailerInterface.php
index f25a10f..8d8f088 100644
--- a/src/Email/MailerInterface.php
+++ b/src/Email/MailerInterface.php
@@ -11,4 +11,8 @@ interface MailerInterface
     public function attach(mixed $attachment) : self;
 
     public function setTo(string|\Stringable|array $to) : self;
+
+    public function setBCC(string|\Stringable|array $bcc) : self;
+
+    public function setCC(string|\Stringable|array $cc) : self;
 }
\ No newline at end of file