Hey Sam,
My view on this is that your Postfix actually send this reply to your system because the bounce is inbound traffic and when you send it from outside is is outbound traffic therefore the virtual file is checked and successfuly blocked this kind of request.
Greetings dominik
Am 23. August 2016 17:57:37 MESZ, schrieb Sam <sr42354@gmail.com>:
Hello,
Sometime when we receive a spam or virus that is detected as it, mailer
daemon send a reply to the sender to inform that the message is a spam or content viruses.
The problem is that the sender of the spam as something like voicemail@ourdomain.fr ( the user voicemail doesn't exist in our database )
And sometimes dovecot create the directory and store the reply 's mail...
Aug 23 16:07:31 mail3 postfix/cleanup[15687]: C7EEB406FFFD: message-id=<20160823140731.C7EEB406FFFD@mail3.ourdomain.fr> Aug 23 16:07:31 mail3 postfix/qmgr[12987]: C7EEB406FFFD: from=<>, size=14280, nrcpt=1 (queue active) Aug 23 16:07:31 mail3 postfix/bounce[15800]: 824D7406FFFC: sender non-delivery notification: C7EEB406FFFD Aug 23 16:07:31 mail3 postfix/qmgr[12987]: 824D7406FFFC: removed Aug 23 16:07:31 mail3 dovecot: auth: Debug: master in: USER#0111#011voicemail#011service=lda Aug 23 16:07:31 mail3 dovecot: auth: Debug: userdb out: USER#0111#011voicemail#011uid=1001#011gid=1001#011home=/home/vmail/voicemail Aug 23 16:07:31 mail3 dovecot: lda(voicemail): msgid=<20160823140731.C7EEB406FFFD@mail3.ourdomain.fr>: saved mail to INBOX Aug 23 16:07:31 mail3 postfix/pipe[15791]: C7EEB406FFFD: to=<voicemail@ourdomain.fr>, relay=dovecot, delay=0.02, delays=0/0/0/0.01, dsn=2.0.0, status=sent (delivered via dovecot service) Aug 23 16:07:31 mail3 postfix/qmgr[12987]: C7EEB406FFFD: removed
here is the stored mail :
Return-Path: <MAILER-DAEMON> Delivered-To: voicemail@ourdomain.fr Received: by mail3.ourdomain.fr (Postfix) id C7EEB406FFFD; Tue, 23 Aug 2016 16:07:31 +0200 (CEST) Date: Tue, 23 Aug 2016 16:07:31 +0200 (CEST) From: MAILER-DAEMON@ourdomain.fr (Mail Delivery System) Subject: Undelivered Mail Returned to Sender To: voicemail@ourdomain.fr Auto-Submitted: auto-replied MIME-Version: 1.0 Content-Type: multipart/report; report-type=delivery-status; boundary="824D7406FFFC.1471961251/mail3.ourdomain.fr" Message-Id: <20160823140731.C7EEB406FFFD@mail3.ourdomain.fr>
This is a MIME-encapsulated message.
--824D7406FFFC.1471961251/mail3.ourdomain.fr Content-Description: Notification Content-Type: text/plain; charset=us-ascii
This is the mail system at host mail3.ourdomain.fr.
I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can delete your own text from the attached returned message.
The mail system<existing.user@ourdomain.com> (expanded from <existing.user@ourdomain.fr>): host mails.collaboration-sfr.com[86.64.240.34] said: 552 5.2.0 <ae7X1t00115ZlG601e7Xvw> reject for policy reason : spam detected in your mail (in reply to end of DATA command)
--824D7406FFFC.1471961251/mail3.ourdomain.fr Content-Description: Delivery report Content-Type: message/delivery-status
Reporting-MTA: dns; mail3.ourdomain.fr X-Postfix-Queue-ID: 824D7406FFFC X-Postfix-Sender: rfc822; voicemail@ourdomain.fr Arrival-Date: Tue, 23 Aug 2016 16:07:29 +0200 (CEST)
Final-Recipient: rfc822; existing.user@ourdomain.com Original-Recipient: rfc822;existing.user@ourdomain.fr Action: failed Status: 5.2.0 Remote-MTA: dns; mails.collaboration-sfr.com Diagnostic-Code: smtp; 552 5.2.0 <ae7X1t00115ZlG601e7Xvw> reject for policy reason : spam detected in your mail
--824D7406FFFC.1471961251/mail3.ourdomain.fr Content-Description: Undelivered Message Content-Type: message/rfc822
Return-Path: <voicemail@ourdomain.fr> Received: from 177.222.108.254.dynamic.on.com.br (unknown [177.222.108.254]) by mail3.ourdomain.fr (Postfix) with ESMTP id 824D7406FFFC for <existing.user@ourdomain.fr>; Tue, 23 Aug 2016 16:07:29 +0200 (CEST) From:voicemail@ourdomain.fr To:existing.user@ourdomain.fr Subject: [Vigor2820 Series] New voice mail message from 01425939048 on 2016/08/23 11:07:28 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="5A1b791c537d41f1"
--5A1b791c537d41f1 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline
Dear existing.user : There is a message for you from 01425939048, on 2016/08/23 11:07:28 . You might want to check it when you get a chance.Thanks!
--5A1b791c537d41f1 Content-Type: audio/x-wav; name="Message_from_01425939048.wav.zip" Content-Transfer-Encoding: BASE64 Content-Description: Voicemail sound attachment. Content-Disposition: attachment; filename="Message_from_01425939048.wav.zip"
UEsDBBQAAAAIAGZiF0n9ycl98x4AAE54AAAQAAAAODU5MjE2MjE1MDA4LndzZuxbW2/jWHJ+ dgP9H9hCMJbaHrWuljW2e2FJlCz1iLJk3T39QJG0SIkXNS/WpcdAZgYJctmXBNgE+7jAArkB uTzkKUD+jLFJ9l+kDnl4Ubd4KM/0dIBgG6ZskfVV1amqU6fqHPb5L1aK/IvXz5+dL1huzk4F 9OdMm1ASf3HYuCq9YZqHr891SzUlBT17/ozC/855weB0aWFKmvo6cPvV9n3nyfkrl8W585CS WXVqgTyQcmPfATEvbsuVy+7lLULdmLqkTpMLXTM1c70QkhPBMDVZ40SVFQW9X+85P6ZpavCP ...
I don't understand why I don't have the same behavior that when I send a mail to a non existant address ( <tottttt@ourdomain.fr>: Recipient address rejected: User unknown in virtual mailbox table )
How can I fix it?
Thanks a lot!
Samuel
-- Diese Nachricht wurde von meinem Android-Gerät mit K-9 Mail gesendet.