smtp-auth

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) } Get to your Gmail account's security settings and set permissions for " Less secure apps " to Enabled . Worked for me. Derp! I signed into the

For educational purposes, I need to send an email through an SMTP server, using SMTP's fundamental and simple rules. I was able to do that using smtp4dev . I telnet localhost 25 and and commands are: I want to do the same thing, using Gmail SMTP server. However, it requires authentication and TLS. I can't figure out how to do that for Gmail. Here's a screenshot of telnet smtp.gmail.com 587 : I searched and found many links including Wikipedia's article about STARTTLS command. But I'm not able to use TLS and authenticate to Gmail's SMTP server using command line (or sending commands myself in

I'm having problems with gmail smtp server. I already read many posts here in StackOverflow about that subject. The best post I found about test the connection is this one . Although it is very well explained the error I'm getting I couldn't find a answer: Google SMTP just says "Please log in via your web browser and then try again". I'm completely sure that the password and the email (both in base64) are well encoded. As you can see here, in this image: , there is just one difference I can notice: the user@gmail.com and password is sent in two steps. In the link above the guy sends both at