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Giuliovr

VPS e QMAIL non inviano a Tiscali mail

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Ciao a tutti. Gestisco una vps con Ubuntu20.04 in cui tramite Plesk ho installato Courier-IMAP e Qmail. Sulla VPS ho inserito correttamente il reverse dns che punta a miodominio.it. Il dominio ce l’ho da un'altra parte e quindi ho impostato i dns che puntano sull'ip dedicato della vps.  Nei dns ho settato correttamente anche i record txt per  spf, dmark e dkim. Il problema è che riesco ad inviare e ricevere posta da tutti (Gmail, hotmail, yahoo) senza farla finire in spam ma da Tiscali non riesco ne a ricevere e neanche ad inviare.

Se provo ad inviare una mail dal mio dominio a qualsiasi indirizzo Tiscali mi torna indietro il messaggio:

Hi. This is the qmail-send program at miodominio.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.

<xxxxxxx@tiscali.it>:
213.205.33.61 failed after I sent the message.
Remote host said: 552 5.2.0 R5my2471B32llU9315mz0S internal error

--- Below this line is a copy of the message.

Return-Path: <contatto@miodominio.it>
Received: (qmail 224590 invoked from network); 4 Feb 2021 17:46:50 +0000
Authentication-Results: miodominio.it;
        spf=pass (sender IP is 127.0.0.1) smtp.mailfrom=contatto@miodominio.it smtp.helo=webmail.miodominio.it
Received-SPF: pass (miodominio.it: connection is authenticated)
Received: from localhost (HELO webmail.miodominio.it) (127.0.0.1)
  by localhost with ESMTPSA (ECDHE-RSA-AES128-GCM-SHA256 encrypted, authenticated); 4 Feb 2021 .........

Se invece da una qualsiasi email Tiscali provo ad inviare una mail al mio dominio esce l'errore " Il destinatario "contatto@miodominio.it" non è stato accettato dal server.! e l'email non parte

Allora ho provato ad accedere alla mia vps tramite ssh e lanciare i comandi:

root@miodominio:~# host -t mx tiscali.it
tiscali.it mail is handled by 50 imp-5.mail.tiscali.it.
tiscali.it mail is handled by 10 etb-1.mail.tiscali.it.
tiscali.it mail is handled by 10 etb-3.mail.tiscali.it.
tiscali.it mail is handled by 10 etb-4.mail.tiscali.it.
tiscali.it mail is handled by 10 etb-2.mail.tiscali.it.

root@miodominio:~# host -t a imp-5.mail.tiscali.it.
imp-5.mail.tiscali.it has address 213.205.33.244

root@miodominio:~# telnet 213.205.33.244 25
Trying 213.205.33.244...
Connected to 213.205.33.244.
Escape character is '^]'.
421 4.2.1 Service not available
Connection closed by foreign host.

root@miodominio:~# host -t a etb-1.mail.tiscali.it.
etb-1.mail.tiscali.it has address 213.205.33.64
etb-1.mail.tiscali.it has address 213.205.33.61
etb-1.mail.tiscali.it has address 213.205.33.62
etb-1.mail.tiscali.it has address 213.205.33.63
root@miodominio:~# telnet 213.205.33.61 25
Trying 213.205.33.61...
Connected to 213.205.33.61.
Escape character is '^]'.
220 cmgw-3.mail.tiscali.it  ESMTP service ready
Connection closed by foreign host.

Praticamente mi viene chiusa la connessione. Anche provando a comunicare

root@miodominio:~# telnet 213.205.33.61 25
Trying 213.205.33.61...
Connected to 213.205.33.61.
Escape character is '^]'.
220 cmgw-4.mail.tiscali.it  ESMTP service ready

ehlo miodominio.it
250-cmgw-4.mail.tiscali.it hello [mio ip], pleased to meet you
250-SIZE 104857600
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 OK
Connection closed by foreign host.

Come posso risolvere? Grazie

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