I'm trying to send email from emacs-gnus. But still get this error:
smtpmail-send-it: Sending failed: 504 5.5.2 : Helo command rejected: need fully-qualified hostname
My config is:
(setq send-mail-function 'smtpmail-send-it message-send-mail-function 'smtpmail-send-it smtpmail-smtp-server "smtp.zenbox.pl" smtpmail-smtp-service 587)
Then I found info that it can be configuration with postfix https://serverfault.com/questions/357990/smtp-auth-with-postfix-reject-with-error-need-fully-qualified-hostname but I haven't found this line "reject_non_fqdn_hostname" in my configuration. Is it problem with emacs conf or with postfix? How I can fix it?