如何在go中获取电子邮件正文（使用imap）？

How to fetch the email body in go ( with imap ) ?. So far I could find the headers but there is no indication where to look for the body.

Send a FETCH command for the BODY[] or BODY.PEEK[] attributes.

For more information, see the IMAP spec.

I figured out how to get the body text. Here is the code:

c.Select("INBOX", true)
//fmt.Print("
Mailbox status:
", c.Mailbox)

// Fetch the headers of the 10 most recent messages
set, _ := imap.NewSeqSet("4:*")
//if c.Mailbox.Messages >= 10 {
//  set.AddRange(c.Mailbox.Messages-9, c.Mailbox.Messages)
//} else {
//  set.Add("1:*")
//}
cmd, _ = c.UIDFetch(set, "RFC822.HEADER", "RFC822.TEXT")

// Process responses while the command is running
fmt.Println("
Most recent messages:")
for cmd.InProgress() {
    // Wait for the next response (no timeout)
    c.Recv(-1)

    // Process command data
    for _, rsp = range cmd.Data {
        header := imap.AsBytes(rsp.MessageInfo().Attrs["RFC822.HEADER"])
        uid := imap.AsNumber((rsp.MessageInfo().Attrs["UID"]))
        body := imap.AsBytes(rsp.MessageInfo().Attrs["RFC822.TEXT"])
        if msg, _ := mail.ReadMessage(bytes.NewReader(header)); msg != nil {
            fmt.Println("|--", msg.Header.Get("Subject"))
            fmt.Println("UID: ", uid)

            fmt.Println(string(body))
        }
    }
    cmd.Data = nil
    c.Data = nil
}

I had similar trouble. I found this example command for use "Fetch" and "Uid".

$ UID FETCH uid (body[text])

and my C# code example

string fileBody = ReceiveResponse($"$ UID FETCH {uidList[i]} (body[text])
");