diff --git a/src/components/Modal/Modal.jsx b/src/components/Modal/Modal.jsx
index a4476eb..694e5d6 100644
--- a/src/components/Modal/Modal.jsx
+++ b/src/components/Modal/Modal.jsx
@@ -1,8 +1,9 @@
-import { useState } from 'react';
+import { useRef, useState, useEffect, useCallback } from 'react';
 import DOMPurify from 'dompurify';
 import ReactDOM from 'react-dom';
 import Badge from '../Badge/Badge';
 import Button from '../common/Button';
+import useModalClose from '../../hooks/useModalClose'; // 경로에 맞게 수정
 import styles from './Modal.module.scss';
 
 export default function Modal({
@@ -14,19 +15,27 @@ export default function Modal({
   createdAt,
   onClose,
 }) {
+  const modalRef = useRef(null);
   const [isClosing, setIsClosing] = useState(false);
   const sanitizedHTML = DOMPurify.sanitize(children);
 
-  const handleCloseModal = () => {
+  // 닫기 로직 (애니메이션 포함)
+  const handleCloseModal = useCallback(() => {
     setIsClosing(true);
     setTimeout(() => {
       onClose();
     }, 300);
-  };
+  }, [onClose]);
+
+  // 외부 클릭 감지하여 닫기
+  useModalClose(modalRef, handleCloseModal);
 
   return ReactDOM.createPortal(
     <div className={styles.backdrop}>
-      <article className={`${styles.modal} ${isClosing ? styles.closing : ''}`}>
+      <article
+        ref={modalRef}
+        className={`${styles.modal} ${isClosing ? styles.closing : ''}`}
+      >
         <header className={styles['modal__header']}>
           <div className={styles['modal__profile-img']}>
             <img src={image} alt="프로필 이미지" />
diff --git a/src/hooks/useModalClose.jsx b/src/hooks/useModalClose.jsx
new file mode 100644
index 0000000..c086fac
--- /dev/null
+++ b/src/hooks/useModalClose.jsx
@@ -0,0 +1,15 @@
+import { useEffect } from 'react';
+
+export default function useDetectClose(ref, onClose) {
+  useEffect(() => {
+    const handleClick = (e) => {
+      if (ref.current && !ref.current.contains(e.target)) {
+        onClose(); // 바로 닫기 말고 외부에서 애니메이션 포함한 onClose 실행
+      }
+    };
+    document.addEventListener('mousedown', handleClick);
+    return () => {
+      document.removeEventListener('mousedown', handleClick);
+    };
+  }, [ref, onClose]);
+}
diff --git a/src/pages/Recipient/Recipient.jsx b/src/pages/Recipient/Recipient.jsx
index cfef512..afac477 100644
--- a/src/pages/Recipient/Recipient.jsx
+++ b/src/pages/Recipient/Recipient.jsx
@@ -50,21 +50,21 @@ export default function Recipient({ showDelete }) {
             new Map(combined.map((message) => [message.id, message])).values(),
           );
 
-          return uniqueMessages;
-        });
-
-        if (showDelete) {
-          setMessages(allMessages);
-        } else {
-          if (
-            allMessages.length % 6 === 0 &&
-            allMessages.length !== newMessages.count
-          ) {
-            setMessages(allMessages.slice(0, allMessages.length - 1));
+          if (showDelete) {
+            setMessages(uniqueMessages);
           } else {
-            setMessages(allMessages);
+            if (
+              uniqueMessages.length % 6 === 0 &&
+              uniqueMessages.length !== newMessages.count
+            ) {
+              setMessages(uniqueMessages.slice(0, uniqueMessages.length - 1));
+            } else {
+              setMessages(uniqueMessages);
+            }
           }
-        }
+
+          return uniqueMessages;
+        });
         if (!postData) return;
         setHasNextMessage(offset < postData.messageCount);
         setLoading(false);
@@ -82,6 +82,7 @@ export default function Recipient({ showDelete }) {
   useEffect(() => {
     const observer = new IntersectionObserver((entries) => {
       const firstEntry = entries[0];
+
       if (firstEntry.isIntersecting && hasNextMessage && !loading) {
         loadMoreMessages();
       }
@@ -126,7 +127,7 @@ export default function Recipient({ showDelete }) {
   }
 
   function handleGoBack() {
-    navigate(-1);
+    showDelete ? navigate(`/post/${id}/`) : navigate('/list');
   }
 
   function handleEditClick(id) {