我正在嘗試發送電子郵件gomail，需要設置發送電子郵件地址。我找到了設置回復地址的鏈接，該鏈接很接近，但不完全是我要找的。Send-as 是我知道 GMail 支持的功能，其他人也可能支持。我已經在 GMail 本身中配置了 send-as 并且工作正常，只是想看看我是否可以通過以下方式設置它gomail我嘗試了以下方法：通讀文檔gomailm.SetHeader("SendAs", emailAddress)m.SetHeader("Send-As", emailAddress)m.SetHeader("sendAs", emailAddress)m.SetAddressHeader("SendAs", emailAddress, "")m.SetAddressHeader("Send-As", emailAddress, "")m.SetAddressHeader("sendAs", emailAddress, "")func TestEmail(to, from, cc, bcc, subject, message, password, fileName string) (string, error) {    // We need to parse the TO, CC, and BCC lists, which may contain more than one email address each.    splitToField := strings.Split(to, ",")    splitCCField := strings.Split(cc, ",")    splitBCCField := strings.Split(bcc, ",")    m := gomail.NewMessage()    m.SetHeader("From", from)    m.SetHeader("To", splitToField...)    // If there is a CC address(s), then add them.    if len(cc) > 0 {        fmt.Println("CC LEN > 0", len(splitCCField))        m.SetHeader("Cc", splitCCField...)    }    // If there is a BCC address(s), then add them.    if len(bcc) > 0 {        fmt.Println("BCC LEN > 0", len(splitBCCField))        m.SetHeader("Bcc", splitBCCField...)    }    m.SetHeader("Subject", subject)    m.SetBody("text/html", message)    m.Attach("emailedQuotes/"+fileName)    // So far, we configured this to ONLY work with GMail accounts.    // Possibly in the future we can add an input on the front end and have them enter    // their host/port manually. Or get fancy and parse the email address and have the most common    // types in a struct.    d := gomail.NewDialer("smtp.gmail.com", 587, from, password)    err := d.DialAndSend(m)    if err != nil {        fmt.Println("ERROR SENDING EMAIL!", err)        return "", err    } else {        fmt.Println("Email successfully sent to: ", to)        return "Email successfully sent to:" + to, nil    }}我的期望是您將能夠輸入地址的用戶名/密碼from，并能夠發送from地址顯示為send-as地址的郵件。如果我執行此操作（使用正確的地址用戶名/密碼from），它將正確發送電子郵件，但send-as不會接管from地址。所以，不起作用，但沒有錯誤。