Subject: Mail delivery failed: returning message to sender
From: "Mail Delivery System" <[email-masked]>
To: <[email-masked]>
Date: Sat, 30 Mar 2024 12:33:11 +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 eur.olc.protection.outlook.com [104.47.18.225]
    SMTP error from remote mail server after RCPT
TO:<[email-masked]>:
    550 5.5.0 Requested action not taken: mailbox unavailable
(S2017062302). [VI1EUR06FT058.eop-eur06.prod.protection.outlook.com
2024-03-30T09:02:39.377Z 08DC505473A97DB8]