fix:MailConfig의 우선순위 문제

Author: dooongdaeng

back/src/main/java/com/back/global/mail/MailConfig.java

@@ -1,16 +1,21 @@
 package com.back.global.mail;
 
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.autoconfigure.AutoConfigureOrder;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Profile;
+import org.springframework.core.Ordered;
 import org.springframework.mail.javamail.JavaMailSender;
 import org.springframework.mail.javamail.JavaMailSenderImpl;
 
 import java.util.Properties;
 
 @Configuration
 @Profile("prod")
+@AutoConfigureOrder(Ordered.HIGHEST_PRECEDENCE)
 public class MailConfig {
 
     @Value("${spring.mail.host}")