Gmail: 530 5.5.1 Authentication Required. Learn more at

Question

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 Authen         


        

Answer 1

You need turn on the POP mail and IMAP mail feature in setting of the email you are using to send mail. Good luck!