Returned mail: see transcript for details

[Mail Delivery Subsystem]

The original message was received at Thu, 14 Dec 2023 19:42:21 +0100
from webhost-out-1.vpn.rug.nl [129.125.243.25]

   ----- The following addresses had permanent fatal errors -----
<ba.gebbink at alfa-college.nl>
    (reason: 550 5.4.1 Recipient address rejected: Access denied. [AM4PEPF00027A6C.eurprd04.prod.outlook.com 2023-12-14T18:42:22.514Z 08DBFB39F89CA4D8])

   ----- Transcript of session follows -----
... while talking to alfacollege-nl01b.mail.protection.outlook.com.:
>>> DATA
<<< 550 5.4.1 Recipient address rejected: Access denied. [AM4PEPF00027A6C.eurprd04.prod.outlook.com 2023-12-14T18:42:22.514Z 08DBFB39F89CA4D8]
550 5.1.1 <ba.gebbink at alfa-college.nl>... User unknown
<<< 503 5.5.2 Need rcpt command [AM4PEPF00027A6C.eurprd04.prod.outlook.com 2023-12-14T18:42:22.514Z 08DBFB39F89CA4D8]
-------------- next part --------------
An embedded message was scrubbed...
From: Preobbit <debian-science-maintainers at lists.alioth.debian.org>
Subject: Nieuwe inzending van Contact - toekomstig-engineer.nl
Date: Thu, 14 Dec 2023 18:42:20 +0000
Size: 4577
URL: <http://alioth-lists.debian.net/pipermail/debian-science-maintainers/attachments/20231214/9662b7d6/attachment.eml>