package main
import ( "log" "net/smtp" )
var ( // To From Subject 非必须 "Subject: Hello World\r\n" + "\r\n" + "这是测试邮件\n\r") )
func main() { hostname := "smtp.exmail.qq.com"
err := smtp.SendMail(hostname+":25", auth, from, recipients, msg) if err != nil { log.Fatal(err) } }