Connected to 2001:4060:1:1001::12:5.
Escape character is '^]'.
220-obelix.imp.ch ESMTP Postfix
Connected to 2001:4060:1:1001::12:4.
Escape character is '^]'.
220-asterix.imp.ch ESMTP Postfix
Connected to 2001:4060:1:1001::12:6.
Escape character is '^]'.
220-idefix.imp.ch ESMTP Postfix
On 16/05/2019 20:32, Yiorgos [George] Adamopoulos via mailop wrote:
> This is what I see:
>
> $ host -t mx leunet.ch [1]
> leunet.ch [1] mail is handled by 10 rrmx.imp.ch [2].
> $ nc -4 -vz rrmx.imp.ch [2]. 25
> Connection to rrmx.imp.ch [2]. 25 port [tcp/smtp] succeeded!
> $ nc -6 -vz rrmx.imp.ch [2]. 25
> nc: connect to rrmx.imp.ch [2]. port 25 (tcp) failed: Network is unreachable
> nc: connect to rrmx.imp.ch [2]. port 25 (tcp) failed: Network is unreachable
> nc: connect to rrmx.imp.ch [2]. port 25 (tcp) failed: Network is unreachable
>
> So maybe AWS SES is trying to connect to the IPv6 address and cannot?
>
> On Thu, May 16, 2019 at 11:42 AM Benoit Panizzon via mailop
> <mailop@mailop.org> wrote:
>
>> Please contact me off-list
>>
>> Short story:
>>
>> A customer of Amazon SES is attempting to send emails to one of our
>> customers.
>>
>> Our customer is not getting them, we don't see ANY trace of those
>> emails in our logs, they just seem to disappear in transit.
>>
>> Re-Tested yesterday, exact times known.
>>
>> Long lasting cases have been opened @ Amazon but the only problem,
>> according to Amazons SES Support is, that the recipient MX is not
>> correct and we should fix that issue, without Amazon being able to tell
>> us what's incorrect (leunet.ch [1], do you see any problem), or that
>> leunet.ch [1] does not have a DKIM entriy (cause disproved by Amazon's own
>> customer showing that he can perfectly send emails to recipients in
>> other domains which also do not have a DKIM entry)
>>
>> Mit freundlichen Grüssen
>>
>> -Benoît Panizzon-
--
Kind Regards,
Noel Butler
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Links:
------
[1] http://leunet.ch
[2] http://rrmx.imp.ch
[3] http://www.adobe.com/
[4] http://en.wikipedia.org/wiki/OpenDocument_______________________________________________
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