requires PTR

anvin3010

44
+0/-0

Salve, cerco di spedire una mail ed il MAILER-DAEMON@___.com
mi risponde cosi:

Hi. This is the qmail-send program at ___.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<info@____.it>:
89.97.176.251 does not like recipient.
Remote host said: 554 This server requires PTR for unauthenticated connections.
Giving up on 89.97.176.251.

Qualcuno ha idea di come si possa risolvere, visto che spedendo la stessa mail da un'account di libero
il destinatario riceve tranquillamante, grazie a tutti in anticipo ... ciao A.

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Stefano

10,894
+3/-0

Re: requires PTR

« Reply #1 on: June 23, 2008, 04:03:08 PM »

ciao e benvenuto a bordo

domanda: le email le spedisci direttamente da sme oppure le inoltri verso lo smarthost del tuo fornitore?

visto che sei appena arrivato, ti invito (come faccio sempre con tutti) a leggere BENE la documentazione e ad usare il link "search" nella barra in alto

Saluti
Stefano

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anvin3010

44
+0/-0

Re: requires PTR

« Reply #2 on: June 23, 2008, 04:29:30 PM »

grazie per il benvenuto... ho cercato prima, infatti sono ormai 3 anni che ho installato nell'azienda in cui lavoro
2 server sme, fino ad ora ho sempre risolto leggendo, ma questa volta, aimè, non ho trovato nulla.

Si le mails le spedisco direttamante da sme.

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Stefano

10,894
+3/-0

Re: requires PTR

« Reply #3 on: June 23, 2008, 04:38:06 PM »

Quote from: anvin3010 on June 23, 2008, 04:29:30 PM

Si le mails le spedisco direttamante da sme.

male

in pratica, il messaggio ti dice che è necessario avere un record ptr per il tuo dominio..

con una ricerca di 5 secondi su google, da http://www.m80.net/support/FAQ.htm

Quote

When I send email, your server reject it with the follow message: "This server requires PTR for unauthenticated connections"

When your company sends email, it bounces as undeliverable. The error message sent by our server to your server upon attempted mail delivery is as follows:

This server requires PTR for unauthenticated connections

What this message means is that your dedicated email server is lacking a reverse DNS (rDNS) entry in your DNS settings. You will need to contact your DNS hosting company and request that they insert a reverse DNS record (also called a PTR record) for the IP address of your email server. The PTR record should be the FQDN (Fully Qualified Domain Name) of your mail server. The FQDN of your mail server should match the MX record DNS entry. The reverse PTR DNS entry should list your FQDN. Also the SMTP response greeting to SMTP connections to and from your SMTP server needs to respond with the FQDN.

Internet standards dictate these requirements. RFC1912 2.1 says you should have a reverse DNS for all your mail servers. It is strongly urged that you have them, as many mail servers will not accept mail from mail servers with no reverse DNS entry. Internet standards also dictate that the SMTP response greeting should reply with your FQDN. Many mail servers will verify that the IP address your are coming from (rDNS) matches the FQDN in the SMTP response header. Lack of a match is a strong indicator of a spammer and may also be a cause for email delivery failure.

A very nice tool to check all these settings can be found here:

http://www.dnsreport.com

If you you are using the default SMTP service in a Windows 2000 or Windows 2003 server environment, you may be able to change the SMTP greeting (HELO Response) to respond with your FQDN. To resolve the SMTP greeting issue, please review the SMTP server settings (found on the IIS service MMC or within the Exchange connectors). Right click on the SMTP server and click on properties, click on the delivery tab, click the Advanced... button and fill in the FQDN field with your fully qualified domain name.

You may need to stop and start the SMTP service for the change to become active. Once you have made the change to the SMTP service, run the DNS report for your domain to verify that the mail server host name in the greeting is correct.

Your DNS hosting company should be able to advise you on the procedure to follow to update your DNS records and set up the reverse DNS PTR record. Changes in the DNS records by your DNS hosting company may take 12 to 48 hours to become effective. Your DNS hosting company should be able to let you know more specifically when you can expect the update to the rDNS to become available.

prova ad usare lo smarthost del tuo fornitore oppure metti mano al dominio

ciao

Stefano

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anvin3010

44
+0/-0

Re: requires PTR

« Reply #4 on: June 23, 2008, 05:59:10 PM »

il DNS con i miei domini risiede su dei server windows 2003 da me!
hai idea di come posso configurare il record PTR ?

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anvin3010

44
+0/-0

Re: requires PTR

« Reply #5 on: June 23, 2008, 06:00:54 PM »

mi stò documentando... magari ne esco da solo ... a dopo
grazie per adesso ...

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anvin3010

44
+0/-0

Re: requires PTR

« Reply #6 on: June 23, 2008, 06:11:31 PM »

ok penso "di essemi capito"
sul mio server DNS (windows server 2003) ho aggiunto nell'area "reverse lookup zone"
un "new pointer (PRT)" con l'ip dei miei server di posta ed il loro nome.

Se funziona tutto te lo so dire fra un paio di gorni, sai i DNS ....

comunque grazie per avermi acceso la "lampadina" che dopo essermi sposato (20 giorni fa) mi si deve
ancora del tutto riprendere.

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