I have a problem in the receipt of the emails I quietly succeed to send her but in entrance I don't receive her and to the sender this arrives: This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: [email protected] all relevant MX records point to non-existent hosts ------ This is a copy of the message, including all the headers. ------ Return-path: <[email protected]> Received: from [xxx.xx.2.2] (helo=smtp-trust-02.pippo.com) by smtp-relay-03.pippo.com with esmtp (Exim 4.77) (envelope-from <[email protected]>) id 1Xat6a-0005nS-ND for [email protected]; Sun, 05 Oct 2014 23:12:40 +0200 Received: (qmail 15940 invoked from network); 5 Oct 2014 21:12:36 -0000 Received: from unknown (HELO LorenzoPC) ([email protected]@[xx.xx.xxx.xxx]) (envelope-sender <[email protected]>) by smtp-trust-02.pippo.com (qmail-ldap-1.03) with SMTP for <[email protected]>; 5 Oct 2014 21:12:36 -0000 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Original IP - 83.211.142.221 X-AntiAbuse: ISO Country - IT X-AntiAbuse: Auth User - [email protected] X-AntiAbuse: Mail From - [email protected] X-AntiAbuse: MailFromAuth - GOODMFROMAUTH X-AntiAbuse: IsoState - iso-GOOD From: "New Service Group amministrazione N.S.G." <[email protected]> To: <[email protected]> Subject: invio Date: Sun, 5 Oct 2014 23:12:32 +0200 Message-ID: <011101cfe0e1$14a64c60$3df2e520$@it> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0112_01CFE0F1.D82F1C60" X-Mailer: Microsoft Office Outlook 12.0 thread-index: Ac/g4ROaZ9DLZ+HdQqCN2BAimQUX8Q== Content-Language: it X-SMTP-RELAY-Spam-Score: 0.0 (/) X-SMTP-RELAY-Spam-Report: host: smtp-relay-03.pippo.com | contact: [email protected] | scores: DOS_OUTLOOK_TO_MX=0.001,FSL_HELO_NON_FQDN_1=0.001,HTML_MESSAGE=0.001,RDNS_NONE=0.001 | autolearn=disabled, score=0.004 Messaggio multipart in formato MIME. server Ubuntu 14.04 A mail xx.xxx.xxx.xxx 0 3600 A ns1 xx.xxx.xxx.xxx 0 3600 A miodominio.com. xx.xxx.xxx.xxx 0 3600 A www xx.xxx.xxx.xxx 0 3600 CNAME pop3 mai.miodominio.com 0 3600 CNAME smtp mail.miodominio.com 0 3600 CNAME webmail www.miodominio.com 0 3600 MX miodominio.com. mail.miodominio.com. 10 3600 NS miodominio.com. ns1.miodominio.com. 0 3600 NS miodominio.com. dns2.mioisp.info. 0 3600