Topic: Le mail tornano indietro....

[filloweb]

Ciao a tutti.

Ho un problema con un destinatario che rimanda indietro le mail.

La segnalazione, da diversi mailserver ( SME, ZIMBRA ) e' sempre la stessa, ovviamente cambiano gli IP.

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Hi. This is the qmail-send program at midominio.it.
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.

<office@bendkopp.ro>:
82.76.253.88 does not like recipient.
Remote host said: 554 "Refused. Your outgoing mail server reverse DNS
contains your IP address and a country code. Ask you Giving up on
82.76.253.88.


Facendo un test con MXTOOLBOX.COM pero' risulta tutto corretto:

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smtp:IPADDRESS

220 mail.miodominio.it ESMTP

Test
 
Result
 
SMTP Reverse Banner Check
 
OK - IPADDRESS resolves to mail.miodominio.it

SMTP Reverse DNS Mismatch
 
OK - Reverse DNS matches SMTP Banner
 
SMTP TLS
 
OK - Supports TLS.
 
SMTP Connection Time
 
0 seconds - Good on Connection time
 
SMTP Open Relay
 
OK - Not an open relay.
 
SMTP Transaction Time
 
2.044 seconds - Good on Transaction Time
 
Session Transcript:

EHLO please-read-policy.mxtoolbox.com
 250-miodominio.it Hi mxtb-pws3.mxtoolbox.com [64.20.227.133]
 250-PIPELINING
 250-8BITMIME
 250-SIZE 15000000
 250 STARTTLS [172 ms]
 MAIL FROM: <supertool@mxtoolbox.com>
 250 <supertool@mxtoolbox.com>, sender OK - how exciting to get mail from you! [187 ms]
 RCPT TO: <test@example.com>
 550 relaying denied test@example.com [156 ms]
 QUIT
 221 miodominio.it closing connection. Have a wonderful day. [172 ms]
 

Come posso risolvere?
Grazie
filloweb

[Stefano]

preso da: https://www.deltatechnicalservices.com/email-policy.php

Refused. Your reverse DNS entry contains your IP address and a country code.

Your server's reverse DNS entry contains its IP address and ends in a two-character country code. For example, if your IP address is 11.22.33.44 and your reverse DNS entry is 11.22.33.44.example.com.us, our server is going to block your email. IP addresses in reverse DNS entries usually indicate servers that shouldn't be sending email - just the kind of server a spammer would use. Country codes are checked because we don't know how to say "dynamic" in every language on earth.

Just change your reverse DNS entry to something meaningful.

To look up your mail server's reverse DNS, use an rDNS tool such as this one: www.mxtoolbox.com/

tu inoltre riporti:

SMTP Reverse Banner Check
 
OK - IPADDRESS resolves to mail.miodominio.it

SMTP Reverse DNS Mismatch
 
OK - Reverse DNS matches SMTP Banner

[filloweb]

Ciao.

Scusa ma il documento non l'avevo trovato.
Ad ogni modo il copia ed incolla ha fuorviato il test effettuato con mxtoolbox.com
Dal test risulta tutto ok tant'e' che ( la prima colonna e' il TEST la seconda il RESULT ):

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SMTP Reverse Banner Check                OK - x.x.x.x resolves to mail.miodominio.it
SMTP Reverse DNS Mismatch               OK - Reverse DNS matches SMTP Banner
SMTP TLS                                           OK - Supports TLS.
SMTP Connection Time                         0 seconds - Good on Connection time
SMTP Open Relay                                OK - Not an open relay.
SMTP Transaction Time                        2.371 seconds - Good on Transaction Time

Mi sembra tutto ok e non capisco cosa potrebbe essere.
Grazie.