diff --git a/src/main/java/com/Nunbody/domain/Mail/domain/MailBody.java b/src/main/java/com/Nunbody/domain/Mail/domain/MailBody.java
index 9e81c3d..8237025 100644
--- a/src/main/java/com/Nunbody/domain/Mail/domain/MailBody.java
+++ b/src/main/java/com/Nunbody/domain/Mail/domain/MailBody.java
@@ -7,6 +7,7 @@
 import org.hibernate.annotations.Fetch;
 import org.springframework.data.mongodb.core.mapping.Document;
 import org.springframework.data.mongodb.core.mapping.Field;
+import org.springframework.data.mongodb.core.mapping.FieldType;
 
 
 @Data
@@ -18,7 +19,7 @@ public class MailBody {
     private String id;
     @Field(name = "mailId")
     private Long mailId;
-    @Field(name = "content")
+    @Field(name = "content", targetType = FieldType.STRING)
     private String content;
 
 
diff --git a/src/main/java/com/Nunbody/domain/mail/controller/MailController.java b/src/main/java/com/Nunbody/domain/mail/controller/MailController.java
index 9dc2293..fe0a581 100644
--- a/src/main/java/com/Nunbody/domain/mail/controller/MailController.java
+++ b/src/main/java/com/Nunbody/domain/mail/controller/MailController.java
@@ -51,7 +51,7 @@ public ResponseEntity<SuccessResponse<?>> validate(@RequestBody ValidateRequestD
         final String string= mailManageService.validateConnect(validateRequestDto);
         return SuccessResponse.ok(string);
     }
-    @GetMapping("{id}")
+    @GetMapping("/header/{id}")
     public ResponseEntity<SuccessResponse<?>> getMailBody(@PathVariable("id") Long mailId){
         final MailBodyResponseDto mailBody = mailService.getMailBody(mailId);
 
diff --git a/src/main/java/com/Nunbody/domain/mail/service/MailService.java b/src/main/java/com/Nunbody/domain/mail/service/MailService.java
index e8b6e50..6bc6766 100644
--- a/src/main/java/com/Nunbody/domain/mail/service/MailService.java
+++ b/src/main/java/com/Nunbody/domain/mail/service/MailService.java
@@ -111,7 +111,7 @@ public MailList mailSetting(Long userId,String platformHost, String platformId,
             MailHeader mailHeaderData;
 
 
-            for (int i = 0; i <10 ; i++) {
+            for (int i = 80; i <90 ; i++) {
                 matcher = pattern.matcher(messages[i].getFrom()[0].toString());
                 if (matcher.find()) {
                     String fromPerson = matcher.group(1);
@@ -163,7 +163,7 @@ public MailBody extractMailBody(Message messages, Long mailId) throws MessagingE
 
         MailBody mailBody = MailBody.builder()
                 .mailId(mailId)
-                .content(contentBytes != null ? new String(contentBytes, StandardCharsets.UTF_8) : null)
+                .content(contentBytes != null ? new String(contentBytes, StandardCharsets.UTF_8) : " ")
                 .build();
 
         return mailBody;