How to send an email with attachments in Go

Question

I have found this library and have managed to send an attachment in an empty email but not to combine text and attachments.

https://github.com/sloonz/go-mime-message

How can it be done?

Answer 1

I created gomail for this purpose. It supports attachments as well as multipart emails and encoding of non-ASCII characters. It is well documented and tested.

Here is an example:

package main

func main() {
    m := gomail.NewMessage()
    m.SetHeader("From", "alex@example.com")
    m.SetHeader("To", "bob@example.com", "cora@example.com")
    m.SetAddressHeader("Cc", "dan@example.com", "Dan")
    m.SetHeader("Subject", "Hello!")
    m.SetBody("text/html", "Hello <b>Bob</b> and <i>Cora</i>!")
    m.Attach("/home/Alex/lolcat.jpg")

    d := gomail.NewPlainDialer("smtp.example.com", 587, "user", "123456")

    // Send the email to Bob, Cora and Dan.
    if err := d.DialAndSend(m); err != nil {
        panic(err)
    }
}