diff --git a/internal/db/db.go b/internal/db/db.go
index c29fa34..33c76f6 100644
--- a/internal/db/db.go
+++ b/internal/db/db.go
@@ -56,7 +56,7 @@ func InitDB(cfg config.DatabaseConfig, storageCfg config.StorageConfig) (*gorm.D
 	}
 
 	// Auto-migrate all models
-	if err := db.AutoMigrate(&User{}, &Domain{}, &Message{}, &Attachment{}, &BanEntry{}, &OutboundMessage{}, &ProtocolLog{}); err != nil {
+	if err := db.AutoMigrate(&User{}, &Domain{}, &Message{}, &Attachment{}, &BanEntry{}, &OutboundMessage{}, &ProtocolLog{}, &MailboxState{}); err != nil {
 		return nil, fmt.Errorf("数据库迁移失败: %w", err)
 	}