Zitat von Marek Salwerowicz <marek_...@wp.pl>:
Hi list,Yesterday I was informed by Users, that they can't send e-mails to one of the banking institutions (so it's a little 'urgent' in businesses manner).The mails are rejected by Messagelabs / Symantec Cloud System, but do not provide any relevant information:*Diagnostic information for administrators:* Generating server: ccd1.root4.net first_name.last_n...@bankdomain.com #550 5.7.1 Delivery not authorized, message refused ## Original message headers: Return-Path: <user@my_domain.pl> X-Env-Sender:user@my_domain.pl X-Msg-Ref: server-7.tower-206.messagelabs.com!1426588985!11238237!1 X-Originating-IP: [my_mta_ip] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 6.13.4; banners=-,-,- X-VirusChecked: Checked X-Virus-Scanned: Debian amavisd-new atmy_mta.my_domain.pl Message-ID: <55080532.7090208@my_domain.pl> Date: Tue, 17 Mar 2015 11:42:58 +0100 From:User User <user@my_domain.pl> Reply-To: <user@my_domain.pl>User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0MIME-Version: 1.0 To: <first_name.last_n...@bankdomain.com> Subject:msg_subject Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 8bitI've already sent e-mails to postmas...@bankdomain.com, but not sure if anyone is going to answer it..Do you have any ideas / online tools so I could check my MTA configuration ? BTW: The reverse DNS and SPF record are set correctly
See something similar on occasion from Symantec. It took one of our customer which had his E-Mail hosted there around a week to get the block away. In the end it was our (correctly) S/MIME signing which lead to the error message "relay denied" from their side. Therefor don't expect too much from this hints:
http://www.symanteccloud.com/de/de/supportcentre/information/r_troublshooting# Regards Andreas
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