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SecurityGateway for Email Servers Non-Delivery Report
http://www.altn.com/ndr/
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The attached message had PERMANENT fatal delivery errors!

After one or more unsuccessful delivery attempts the attached message has
been removed from the mail queue on this server.  The number and frequency
of delivery attempts are determined by local configuration parameters.

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YOUR MESSAGE WAS NOT DELIVERED TO ONE OR MORE RECIPIENTS!
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Failed address: [Mairie - Le Blanc-Mesnil request email]

--- Session Transcript ---

Fri 2024-04-19 11:51:01: Tentative de connexion TCP sur [192.168.11.204 : 25]
Fri 2024-04-19 11:51:01: Connexion établie sur le socket (172.19.30.12 : 55734 -> 192.168.11.204 : 25)
Fri 2024-04-19 11:51:01: Attente de l'initiation du protocole...
Fri 2024-04-19 11:51:01: <-- 220 blancmesnil.fr ESMTP Fri, 19 Apr 2024 11:51:01 +0200
Fri 2024-04-19 11:51:01: --> EHLO blancmesnil.fr
Fri 2024-04-19 11:51:01: <-- 250-blancmesnil.fr Hello blancmesnil.fr [172.19.30.12], pleased to meet you
Fri 2024-04-19 11:51:01: <-- 250-ETRN
Fri 2024-04-19 11:51:01: <-- 250-AUTH LOGIN CRAM-MD5 PLAIN
Fri 2024-04-19 11:51:01: <-- 250-8BITMIME
Fri 2024-04-19 11:51:01: <-- 250-ENHANCEDSTATUSCODES
Fri 2024-04-19 11:51:01: <-- 250-PIPELINING
Fri 2024-04-19 11:51:01: <-- 250-CHUNKING
Fri 2024-04-19 11:51:01: <-- 250-STARTTLS
Fri 2024-04-19 11:51:01: <-- 250 SIZE
Fri 2024-04-19 11:51:00: Attempt to deliver message [51735409]: msgbodyid=8970838, size=5782, subject=Demande au titre du droit d’accès aux documents administratifs - Demande de communication des notes de
Fri 2024-04-19 11:51:01: --> MAIL From:<[FOI #45885 email]> SIZE=5782
Fri 2024-04-19 11:51:01: <-- 250 2.1.0 Sender OK
Fri 2024-04-19 11:51:01: --> RCPT To:<[Mairie - Le Blanc-Mesnil request email]>
Fri 2024-04-19 11:51:01: <-- 550 5.1.1 Recipient unknown <[Mairie - Le Blanc-Mesnil request email]>
Fri 2024-04-19 11:51:01: OnSendPermFail [51735409] : msgbodyid=8970838, subject=Demande au titre du droit d’accès aux documents administratifs - Demande de communication des notes de, temp file=<C:\Program Files (x86)\Alt-N Technologies\SecurityGateway\Temp\a531529c1c9c43daa139460b24a9ab5f.tmp>

--- End Transcript ---
  
: Message contains [1] file attachments