Subject: Mail delivery failed: returning message to sender
From: "Mail Delivery System" <[email-masked]>
To: <[email-masked]>
Date: Sat, 16 Mar 2024 17:43:34 +0330

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-masked]
    host mx5.vodafonemail.de [2.207.151.53]
    SMTP error from remote mail server after end of data:
    550 5.7.0 SPAM type=spam - Not spam? Contact [email-masked]
with reference ID 149169::1710598414-71FFA11D-E1F02FA2/10/57405008746 to
resolve this issue.
  [email-masked]
    host mx1c52.megamailservers.eu [91.136.8.194]
    SMTP error from remote mail server after end of data:
    550 5.7.1 42GEDVMx063749 This message has been blocked for containing
SPAM-like characteristics.
  [email-masked]
    host smta1.fr.ch [156.25.4.9]
    SMTP error from remote mail server after RCPT
TO:<[email-masked]>:
    550 5.1.1 <[email-masked]>:
    Recipient address rejected: User unknown in local recipient table