On 07-09-2020 09:48, Leen Besselink wrote:
>
> On 07-09-2020 09:41, Leen Besselink wrote:
>>
>> On 07-09-2020 06:53, Claus Assmann wrote:
>>> On Sun, Sep 06, 2020, Leen Besselink wrote:
>>>
>>>> So I was checking the logs and I saw mail.openbsd.org connected and
>>>> disconnected but strange enough did not deliver any mail:
>>> I noticed something similar and asked on misc at opensmtpd.org
>>>
>>> Date: Sat, 16 May 2020 12:20:35 +0200
>>> Subject: design or error: no transaction started by opensmtpd
>>> Message-ID: <20200516102035.GA45072@kiel.esmtp.org>
>>>
>>> but nobody replied.
>>>
>> Thanks for your reply ! Good to know I'm not the only one. :-)
>>
>> Based on the Postfix logs, it looks to me like it does only does:
>>
>> EHLO, STARTTLS, EHLO and QUIT.
>>
>> I've enabled debug in Postfix for the IP of mail.openbsd.org but very
>> likely just show what I just mentioned.
>>
>> So most likely their is something in the EHLO which scares off the
>> mail.openbsd.org
>>
>> Only difference I see between the 2 mailservers I'm using for this
>> domain for the EHLO is the one that doesn't receive the mail
>> announced it supports CHUNKING
>>
>> Which I've now turned off to be announced in the EHLO
>>
>> Let's see what happens...
>>
>>
> OK, with CHUNKING not mentioned in the EHLO mail did arrive, so I
> turned it back on.
>
>
So I just got confirmation, when CHUNKING is in the EHLO then it will do
STARTTLS, but after a second EHLO it will notice the CHUNKING and just QUIT.
My guess is this is a bug/misconfiguration.
I'll try to contact postmaster@openbsd.org and see what happens.
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