Gmail: 530 5.5.1 Authentication Required. Learn more at
问题 This Go program successfully sends email from my home computer, but on a virtual server on DigitalOcean receives the following error: panic: 530 5.5.1 Authentication Required. Learn more at Here's the code: auth := smtp.PlainAuth("", "bjorkbjorksen@gmail.com", "PASSWORD", "smtp.gmail.com") msg := "Subject: Hello\r\n\r\nWorld!" e = smtp.SendMail("smtp.gmail.com:587", auth, "bjorkbjorksen@gmail.com", []string{email}, []byte(msg)) if e != nil { panic(e) } 回答1: Get to your Gmail account's