diff --git a/src/Mail.php b/src/Mail.php
index 0091830..25327b7 100644
--- a/src/Mail.php
+++ b/src/Mail.php
@@ -9,11 +9,6 @@
  */
 interface Mail
 {
-    /**
-     * @return Recipient[]
-     */
-    public function getTo(): array;
-
     /**
      * @param Recipient $recipient
      *
@@ -21,11 +16,6 @@ public function getTo(): array;
      */
     public function addTo(Recipient $recipient): Mail;
 
-    /**
-     * @return Recipient[]
-     */
-    public function getCc(): array;
-
     /**
      * @param Recipient $recipient
      *
@@ -33,11 +23,6 @@ public function getCc(): array;
      */
     public function addCc(Recipient $recipient): Mail;
 
-    /**
-     * @return Recipient[]
-     */
-    public function getBcc(): array;
-
     /**
      * @param Recipient $recipient
      *
@@ -45,11 +30,6 @@ public function getBcc(): array;
      */
     public function addBcc(Recipient $recipient): Mail;
 
-    /**
-     * @return Recipient
-     */
-    public function getFrom(): Recipient;
-
     /**
      * @param Recipient $recipient
      *
@@ -57,11 +37,6 @@ public function getFrom(): Recipient;
      */
     public function setFrom(Recipient $recipient): Mail;
 
-    /**
-     * @return Recipient
-     */
-    public function getReplyTo(): Recipient;
-
     /**
      * @param Recipient $recipient
      *
@@ -69,11 +44,6 @@ public function getReplyTo(): Recipient;
      */
     public function setReplyTo(Recipient $recipient): Mail;
 
-    /**
-     * @return string
-     */
-    public function getSubject(): string;
-
     /**
      * @param string $subject
      *
@@ -81,11 +51,6 @@ public function getSubject(): string;
      */
     public function setSubject(string $subject): Mail;
 
-    /**
-     * @return Attachment[]
-     */
-    public function getAttachments(): array;
-
     /**
      * @param Attachment $attachment
      *
@@ -93,11 +58,6 @@ public function getAttachments(): array;
      */
     public function addAttachment(Attachment $attachment): Mail;
 
-    /**
-     * @return string
-     */
-    public function getMessage(): string;
-
     /**
      * @param string $message
      *