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Sending to WP.pl - persistent 421 after DATA [Was: Problem z Exchange Server i niektórymi kontami]

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Andrzej Adam Filip

unread,
Oct 13, 2010, 4:27:26 AM10/13/10
to
AFAIR wp.pl have used very "strict" (draconian) and non standard
anti-spam measures. I would suggest you contacting/consulting
directly posta...@wp.pl (from another account/mail server).

ron...@airlive.com (Email problem) writes:
> Dear all,
>
> Sorry, I don\'t know Polish. But I saw the same question that your have.
>
> I\'m the administrator of airlive.com\'s Email Server.
> Our mails cannot send to anyone of @wp.pl.
>
>> <konr...@wp.pl>: host mx5.wp.pl[212.77.101.9] said: 421 service temporarily
>> unavailable (in reply to DATA command)
>
> This is juse one of the many users that we tried to send mails to.
> But no email can be sent, all the mails are returned back with the above
> message.
>
> I did a search on google with the two key words together:
> \"421 service temporarily unavailable\" \"in reply to DATA command\"
> All the results are related with wp.pl.
>
> If I do the search on google using \"firewall\", it won\'t only appeare
> Cisco\'s products, unless all the firewall products are manufactured by
> Cisco.
>
> So, if all the error message are related with wp.pl, it means that this
> problem only appeared in your mail server. Please help us solve the
> problem. Many of your users ask technical support about our company\'s
> products. If this problem doesnot solve, we are unable to provide support
> on time.
>
> Please help us solve the problem. Thanks you very very much.

Sebastian Richter

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Oct 14, 2010, 5:46:04 AM10/14/10
to
W dniu 2010-10-13 10:27, Andrzej Adam Filip pisze:

> AFAIR wp.pl have used very "strict" (draconian) and non standard
> anti-spam measures. I would suggest you contacting/consulting
> directly posta...@wp.pl (from another account/mail server).

>>> <konr...@wp.pl>: host mx5.wp.pl[212.77.101.9] said: 421 service temporarily

Hej,

Miałem to samo jak próbowałem wysyłać maila z hostingu hostnine.com
W odpowiedzi był ten sam komunikat. Admini z H9 twierdzili, ze wina
lezy po stronie wp a wp odbijala pileczke i twierdzila ze winny jest H9

Po 2 miesiecznej, nieskutecznej walce z wp, porzucilem H9 a szkoda bo
fajne warunki tam byl.

--
Sebastian Richter

Andrzej Adam Filip

unread,
Oct 14, 2010, 6:06:31 AM10/14/10
to
Sebastian Richter
<skipper.NIE...@BO.NIE.I.KONIEC.richtersi.net> pisze:

> W dniu 2010-10-13 10:27, Andrzej Adam Filip pisze:
>> AFAIR wp.pl have used very "strict" (draconian) and non standard
>> anti-spam measures. I would suggest you contacting/consulting
>> directly posta...@wp.pl (from another account/mail server).
>
>>>> <konr...@wp.pl>: host mx5.wp.pl[212.77.101.9] said: 421 service temporarily
>
> Miałem to samo jak próbowałem wysyłać maila z hostingu hostnine.com
> W odpowiedzi był ten sam komunikat. Admini z H9 twierdzili, ze wina
> lezy po stronie wp a wp odbijala pileczke i twierdzila ze winny jest H9
>
> Po 2 miesiecznej, nieskutecznej walce z wp, porzucilem H9 a szkoda bo
> fajne warunki tam byl.

<lang-pl> Proszę piszcie po angielsku dla "drążącego problem"</lang-pl>

*Persistent* 421 rejects are IMHO gross negligence in configuration of
anti-spam filters -> filters should reject with 5?? code, maybe after a
rejecting with 4?? in a few initial sessions.

Most likely its it caused by botched attempt by milter based antispam
filters to drop incoming connection without care about "false positives".

http://www.sendmail.org/releases/8.13.0
<quote>
LIBMILTER: If a milter sets the reply code to "421", the SMTP server
will terminate the SMTP session with that error.
</quote>

--
Andrzej Adam Filip : an...@onet.eu : Andrze...@gmail.com
Kapitan, którego statek rozbił się powtórnie, nie powinien
wszystkiego zrzucać na Neptuna.
-- Przysłowie angielskie (pl.wikiquote.org)

Tomasz Potega

unread,
Oct 14, 2010, 6:11:34 AM10/14/10
to
On 10/14/10 11:46, Sebastian Richter wrote:
> Po 2 miesiecznej, nieskutecznej walce z wp, porzucilem H9 a szkoda bo
> fajne warunki tam byl.

Czy przypadkiem WP nie podawa�a konkretnego powodu odrzucania
wiadomo�ci?

Je�li przedstawi si� komplet informacji (adresy nadawcy, odbiorc�w, IP,
etc.) - mam mocne wra�enie (prawie granicz�ce z wiedz�), �e mo�na
liczyďż˝ na kompetentnďż˝ pomoc.

pozdrowienia,
shadow

Marek Marczykowski

unread,
Oct 17, 2010, 11:35:52 AM10/17/10
to
On 2010-10-13, Andrzej Adam Filip <an...@xl.wp.pl> wrote:
> AFAIR wp.pl have used very "strict" (draconian) and non standard
> anti-spam measures. I would suggest you contacting/consulting
> directly posta...@wp.pl (from another account/mail server).
>
> ron...@airlive.com (Email problem) writes:
>> Dear all,
>>
>> Sorry, I don\'t know Polish. But I saw the same question that your have.
>>
>> I\'m the administrator of airlive.com\'s Email Server.
>> Our mails cannot send to anyone of @wp.pl.
>>
>>> <konr...@wp.pl>: host mx5.wp.pl[212.77.101.9] said: 421 service temporarily
>>> unavailable (in reply to DATA command)

mx5.wp.pl ALWAYS response with 421. What you got from mx.wp.pl?

--
Pozdrawiam,
Marek Marczykowski | gg:2873965 | RLU #390519
marmarek at staszic waw pl | xmpp:marmarek at staszic waw pl
http://akademia.linuksa.pl - Szkolenia Linux, PHP, Java, Office

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