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Re[2]: [opennic-discuss] Not receiving registration e-mails

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  • From: Андрей <a.kirdishev AT>
  • To: discuss AT
  • Subject: Re[2]: [opennic-discuss] Not receiving registration e-mails
  • Date: Mon, 13 Sep 2021 16:43:32 +0300
  • Authentication-results:; auth=pass smtp.auth=a.kirdishev AT smtp.mailfrom=a.kirdishev AT

I'm so good, fuck off

Понедельник, 13 сентября 2021, 16:58 +08:00 от Sgiath <sgiath AT>:
On 2021-09-10 12:27 PM, Paczki wrote:
> I am registering an OpenNIC account with a Gmail (I also tried my
> self-hosted mail server, which I am sending this e-mail from), but I
> have never received the confirmation e-mail that OpenNIC is meant to send.
> Checking my Postfix logs on my mail server showed nothing.
> If anyone could help me with this I’d really appreciate it.

Hi, I had the same problem with my self-hosted mail server and I found out
that my Postfix configuration was too strict for OpenNIC mail servers. They were
not passing the `reject_invalid_helo_hostname` check. I was able to "fix" it by
adding this to my configuration:

      smtpd_helo_restrictions =
+ check_helo_access hash:/etc/postfix/access_exceptions

And creating file `/etc/postfix/access_exceptions` : OK OK

(and of course running `postmap access_exceptions`)

It is probably because OpenNIC does not have PTR record setup correctly:

    $ drill 123 IN A

    $ drill -x 86239 IN PTR static

Hope it will help to resolve your issue
GPG: 0x70F9C7DE34CB3BC8

Why is HTML email a security nightmare? See

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