[Tts-project] WARNING: Message delivery failed

[MDaemon at studioera.it]

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=  Greetings from the MDaemon mail system at studioera.it  =
============================================================

The following message:

     Session-ID: 815249 (specific to this delivery attempt)
       Queue-ID: pd35000277962.msg
     Message-ID: 20160821025531.8FB22CF6824F84BC at from.header.has.no.domain

could not be delivered to the following recipient(s):

     tts-project at lists.alioth.debian.org (unrecoverable error)

despite one or more unsuccessful attempts to do so.

No further delivery attempts will be made and the message has been removed from the queue.

The original message headers follow at the end of this report.  For information on DSN messages see http://www.altn.com/dsn/.

Please quote the Queue-ID, Session-ID, and Message-ID found above in any inquiries regarding this message.

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=  Session Transcript  =
========================

  Session 815249; child 0042
  Parsing message <xxxxxxxxxxxxxxxxxx\pd35000277962.msg>
  *  From: Credit Mutuel
  *  To: tts-project at lists.alioth.debian.org
  *  Subject: Carte de Clés expire, Confirmer pour renouveler  tts-project at lists.alioth.debian.org
  *  Size (bytes): 1413
  *  Message-ID: <20160821025531.8FB22CF6824F84BC at from.header.has.no.domain>
  Resolving MX record for lists.alioth.debian.org (DNS Server: 192.168.16.102)...
  *  P=010 S=000 D=lists.alioth.debian.org TTL=(4) MX=[mail.alioth.debian.org]
  Attempting SMTP connection to mail.alioth.debian.org
  *  mail.alioth.debian.org found in internal AAAA lookup black-list
  Resolving A record for mail.alioth.debian.org (DNS Server: 192.168.16.102)...
  *  D=mail.alioth.debian.org TTL=(5) A=[5.153.231.21]
  Attempting SMTP connection to 5.153.231.21:25
  Waiting for socket connection...
  *  Connection established 192.168.16.102:49542 --> 5.153.231.21:25
  Waiting for protocol to start...
  <-- 220 moszumanska.debian.org ESMTP Exim 4.80 Sun, 21 Aug 2016 01:00:21 +0000
  --> EHLO studioera.it
  <-- 250-moszumanska.debian.org Hello 93-63-214-112.ip29.fastwebnet.it [93.63.214.112]
  <-- 250-SIZE 52428800
  <-- 250-8BITMIME
  <-- 250-STARTTLS
  <-- 250 HELP
  --> MAIL From:<tts-project at lists.alioth.debian.org> SIZE=1413
  <-- 250 OK
  --> RCPT To:<tts-project at lists.alioth.debian.org>
  <-- 250 Accepted
  --> DATA
  <-- 354 Enter message, ending with "." on a line by itself
  Sending <xxxxxxxxxxxxxxxxxx\pd35000277962.msg> to [5.153.231.21]
  Transfer Complete
  <-- 550 Message headers fail syntax check
  --> QUIT

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=    End Transcript    =
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