Subject: Mail delivery failed: returning message to sender
From: Mail Delivery System <[email-masked]>
To: <[email-masked]>
Date: Sat, 28 Dec 2024 10:38:09 +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]
    (generated from [email-masked])
    LMTP error after RCPT TO:<[email-masked]>:
    550 5.1.1 <[email-masked]> User doesn't exist:
    [email-masked]
UmVwb3J0aW5nLU1UQTogZG5zOyBzZXJ2ZXIuc2VkYW5tZWQuY28NCg0KQWN0aW9uOiBmYWlsZWQN
CkZpbmFsLVJlY2lwaWVudDogcmZjODIyO2luZm9Ac2VkYW5tZWQuaXINClN0YXR1czogNS4wLjAN
Cg0K