SMTP Testing Golang

smtp_configurations_testing.go

package main

import (
    "log"
    "fmt"
    "net/smtp"
    "bufio"
    "os"
    "strings"
)

func main() {
    reader := bufio.NewReader(os.Stdin)
    fmt.Print("From: ")
    from, _ := reader.ReadString('\n')
    fmt.Print("To: ")
    to, _ := reader.ReadString('\n')
    fmt.Print("SMTP: ")
    smt, _ := reader.ReadString('\n')
    fmt.Print("Port: ")
    port, _ := reader.ReadString('\n')
    fmt.Print("Pass: ")
    pass, _ := reader.ReadString('\n')
    fmt.Print("Subject: ")
    subject, _ := reader.ReadString('\n')
    fmt.Print("Body: ")
    body, _ := reader.ReadString('\n')
    send(strings.TrimSpace(from), strings.TrimSpace(to), strings.TrimSpace(subject), strings.TrimSpace(body), strings.TrimSpace(smt), strings.TrimSpace(port), strings.TrimSpace(pass))
}

func send(from, to, subject, body, smt, port, pass string) {
    msg := "From: " + from + "\n" +
        "To: " + to + "\n" +
        "Subject: " + subject + "\n\n" +
        body

    log.Printf("From: %s", from)
    log.Printf("To: %s", to)
    log.Printf("Subject: %s", subject)
    log.Printf("Body: %s", body)
    log.Printf("Smtp: %s", smt)
    log.Printf("Port: %s", port)
    log.Printf("Pass: %s", pass)

    err := smtp.SendMail(smt + ":" + port,
        smtp.PlainAuth("", from, pass, smt),
        from, []string{to}, []byte(msg))

    if err != nil {
        log.Printf("smtp error: %s", err)
        return
    }
    
    log.Print("sent")
}