github.com/txthinking/mailx (go): Package mailx is a lightweight SMTP/Mailgun/etc mail sender. Implement RFC0821, RFC0822, RFC1869, RFC2045, RFC2821 Support html body, don't worry that the receiver's mail client can't support html, because Mailer will send both text/plain and text/html body, so if the mail client can't support html, it will display the text/plain body.
Keywords: email|go|mail|smtp