diff --git a/maku-boot-system/src/main/java/net/maku/system/enums/MailFormatEnum.java b/maku-boot-system/src/main/java/net/maku/system/enums/MailFormatEnum.java
new file mode 100644
index 0000000..f520565
--- /dev/null
+++ b/maku-boot-system/src/main/java/net/maku/system/enums/MailFormatEnum.java
@@ -0,0 +1,27 @@
+package net.maku.system.enums;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+/**
+ * 邮件格式枚举
+ *
+ * @author 阿沐 babamu@126.com
+ * <a href="https://maku.net">MAKU</a>
+ */
+@Getter
+@AllArgsConstructor
+public enum MailFormatEnum {
+    /**
+     * 纯文本
+     */
+    TEXT,
+    /**
+     * HTML
+     */
+    HTML,
+    /**
+     * 模板
+     */
+    TEMPLATE;
+}