connect from unknown[unknown]

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connect from unknown[unknown]

Fourhundred Thecat
Hello,

I am curious, how can this happen:

  postfix/smtpd: connect from unknown[unknown]
  postfix/smtpd: lost connection after CONNECT from unknown[unknown]
  postfix/smtpd: disconnect from unknown[unknown] commands=0/0

how can postfix not see the IP address?
Why does it say "unknown[unknown]", instead if unknown[1.2.3.4]?
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Re: connect from unknown[unknown]

Pau Amma
On 2020-06-19 06:47, Fourhundred Thecat wrote:
>  postfix/smtpd: connect from unknown[unknown]
>  postfix/smtpd: lost connection after CONNECT from unknown[unknown]
>  postfix/smtpd: disconnect from unknown[unknown] commands=0/0
>
> how can postfix not see the IP address?
> Why does it say "unknown[unknown]", instead if unknown[1.2.3.4]?

IIRC, when this last came up, the answer was along the lines of "because
the connection was closed before Postfix could find out the IP address".
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Re: connect from unknown[unknown]

Benny Pedersen-2
In reply to this post by Fourhundred Thecat
On 2020-06-19 06:47, Fourhundred Thecat wrote:

> postfix/smtpd: lost connection after CONNECT from unknown[unknown]
> how can postfix not see the IP address?
> Why does it say "unknown[unknown]", instead if unknown[1.2.3.4]?

remote uses wget or something

CONNECT is not smtp

postconf -d | grep CONNECT