> On Dec 15, 2016, at 9:56 AM, L.P.H. van Belle <[email protected]> wrote:
>
> I couldnt find this on the internet and is was thinking, the postfix list wil
> know this.
> Customer send email which are rejected by my server. I thinks that is
> correctly rejected.
>
> Now i digged into this and i found the following but i dont know if this is
> allowed by RFC.
> To me this should not be done but if someone can conform this, that would
> make me happy.
>
> Log part
> Dec 15 14:22:23 mailrelay postfix/smtpd[3361]: NOQUEUE: reject: RCPT from
> unknown[1.2.3.4]: 554 5.7.1 ,<host.domain.tld>: Helo command rejected: Host
> not found; from=<[email protected]> to=<[email protected]> proto=ESMTP
> helo=<host.domain.tld >
Is there really a SPACE in "helo=<name >", or is that a cut/paste artifact?
What operating system (and perhaps glibc version) are you using? This may
be relevant, so for example:
http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/net/getnameinfo.c?only_with_tag=MAIN
https://bugzilla.redhat.com/show_bug.cgi?id=221583
...
And post the un-obfuscated hostname and IP addresses in question.
--
Viktor.
