Nikolas Kallis:
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> >> What the documentation says is incorrect. Under '3.6 Domains' of RFC
> >> 2821, it says a host name can be an address literal. So, if I use
> >> 'reject_non_fqdn_helo_host name' and a SMTP client uses an address
> >> literal for its host name, will Postfix reject the mail?
> >
> > Of course not.
>
> According to my mail log file, it does:
>
> Jun 7 19:31:46 n-AOD270 postfix/smtpd[17792]: NOQUEUE: reject: RCPT
> from unknown[37.212.64.248]: 504 5.5.2 <37.212.64.248>: Helo command
> rejected: need fully-qualified hostname; from=<>
> to=<n...@nikolaskallis.com> proto=SMTP helo=<37.212.64.248>
>
> Notice helo equals '37.212.64.248' - an address literal.
Please READ the RFC. That form is INVALID.
Wietse
