:new:新增了邮件工具

config/mail.go

@@ -0,0 +1,9 @@
+package config
+
+type mail struct {
+	Host     string `json:"host" yaml:"host"`
+	Port     int    `json:"port" yaml:"port"`
+	User     string `json:"user" yaml:"user"`
+	Password string `json:"password" yaml:"password"`
+	SkipTls  bool   `json:"skipTls" yaml:"skipTls"`
+}