Your message to 21fader@buchs.co.uk couldn't be delivered.
A custom mail flow rule created by an admin at buchs.co.uk has blocked your message.
Student's cannot recieve mail externally for security reasons
webmaster Office 365 buchs.co.uk
Sender Action Required
Blocked by mail flow rule

How to Fix It
An email admin at buchs.co.uk has created a custom mail flow rule that blocks messages that meet certain conditions, and it appears that your message has met one or more of those conditions.
  • Check the text above for a custom message from the email admin that may help explain why your message was blocked and how you might be able to fix it. For example, removing prohibited words from the message or sending the message from a different email account may be sufficient to deliver your message.
If you've tried and you're still not able to fix the problem, consider contacting the email admin at buchs.co.uk to discuss what to do. While they're unlikely to remove or relax the rule, if you have a legitimate need to deliver your message they may offer guidance for how to do so.


More Info for Email Admins
Status code: 550 5.7.1_ETR

This error occurs because an email admin at buchs.co.uk has created a custom mail flow rule that has blocked the sender's message.

In some cases, the sender can change the message so it no longer violates the rule. However, depending on the rule's conditions, it's possible that the only way to deliver the message is to change the rule itself, and only an email admin at buchs.co.uk can do that. Although it's possible the rule is unintentionally flawed or it's stricter than the admin intended, it may be working exactly as they want it to.
Original Message Details
Created Date: 12/14/2023 8:53:48 PM
Sender Address: webmaster@inkscape.org
Recipient Address: 21fader@buchs.co.uk
Subject: Your registration on inkscape.org

Error Details
Error: 550 5.7.1 TRANSPORT.RULES.RejectMessage; the message was rejected by organization policy
Message rejected by: CWXP265MB2120.GBRP265.PROD.OUTLOOK.COM

Notification Details
Sent by: CWXP265MB2120.GBRP265.PROD.OUTLOOK.COM

Message Hops
HOP TIME (UTC) FROM TO WITH RELAY TIME
1 12/14/2023
8:53:48 PM		 inkscape1.osuosl.org inkscape1.osuosl.org ESMTP *
2 12/14/2023
8:53:48 PM		 inkscape1.osuosl.org smtp2.osuosl.org ESMTP *
3 12/14/2023
8:53:48 PM		 smtp2.osuosl.org localhost ESMTP *
4 12/14/2023
8:53:49 PM		 localhost smtp2.osuosl.org ESMTP 1 sec
5 12/14/2023
8:53:51 PM		 smtp2.osuosl.org DB5EUR01FT086.mail.protection.outlook.com Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) 2 sec
6 12/14/2023
8:53:53 PM		 DB5EUR01FT086.eop-EUR01.prod.protection.outlook.com DU2PR04CA0067.outlook.office365.com Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) 2 sec
7 12/14/2023
8:53:53 PM		 DU2PR04CA0067.eurprd04.prod.outlook.com CWXP265MB2120.GBRP265.PROD.OUTLOOK.COM Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) *

Original Message Headers

Received: from DU2PR04CA0067.eurprd04.prod.outlook.com (2603:10a6:10:232::12)
 by CWXP265MB2120.GBRP265.PROD.OUTLOOK.COM (2603:10a6:400:86::8) with
 Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7091.31; Thu, 14 Dec
 2023 20:53:53 +0000
Received: from DB5EUR01FT086.eop-EUR01.prod.protection.outlook.com
 (2603:10a6:10:232:cafe::2f) by DU2PR04CA0067.outlook.office365.com
 (2603:10a6:10:232::12) with Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7091.26 via Frontend
 Transport; Thu, 14 Dec 2023 20:53:53 +0000
Authentication-Results: spf=pass (sender IP is 140.211.166.133)
 smtp.mailfrom=inkscape.org; dkim=none (message not signed)
 header.d=none;dmarc=bestguesspass action=none header.from=inkscape.org;
Received-SPF: Pass (protection.outlook.com: domain of inkscape.org designates
 140.211.166.133 as permitted sender) receiver=protection.outlook.com;
 client-ip=140.211.166.133; helo=smtp2.osuosl.org; pr=C
Received: from smtp2.osuosl.org (140.211.166.133) by
 DB5EUR01FT086.mail.protection.outlook.com (10.152.5.118) with Microsoft SMTP
 Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 15.20.7091.28 via Frontend Transport; Thu, 14 Dec 2023 20:53:51 +0000
Received: from localhost (localhost [127.0.0.1])
	by smtp2.osuosl.org (Postfix) with ESMTP id 7D60040253
	for <21fader@buchs.co.uk>; Thu, 14 Dec 2023 20:53:49 +0000 (UTC)
DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org 7D60040253
X-Virus-Scanned: amavisd-new at osuosl.org
Received: from smtp2.osuosl.org ([127.0.0.1])
	by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)
	with ESMTP id gzzkoOIya8Ub for <21fader@buchs.co.uk>;
	Thu, 14 Dec 2023 20:53:48 +0000 (UTC)
Received: from inkscape1.osuosl.org (inkscape1.osuosl.org [140.211.9.79])
	by smtp2.osuosl.org (Postfix) with ESMTP id 810BE40480
	for <21fader@buchs.co.uk>; Thu, 14 Dec 2023 20:53:48 +0000 (UTC)
DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org 810BE40480
Received: from inkscape1.osuosl.org (localhost [IPv6:::1])
	by inkscape1.osuosl.org (Postfix) with ESMTP id 524D8F176
	for <21fader@buchs.co.uk>; Thu, 14 Dec 2023 20:53:48 +0000 (UTC)
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: Your registration on inkscape.org
From: webmaster@inkscape.org
To: 21fader@buchs.co.uk
Date: Thu, 14 Dec 2023 20:53:48 -0000
Message-ID: <170258722833.8319.18164190927309292638@inkscape1.osuosl.org>
Return-Path: webmaster@inkscape.org
X-EOPAttributedMessage: 0
X-EOPTenantAttributedMessage: 2ffe34b4-f284-4d12-bb59-c164dc88588f:0
X-MS-PublicTrafficType: Email
X-MS-TrafficTypeDiagnostic: DB5EUR01FT086:EE_|CWXP265MB2120:EE_
X-MS-Office365-Filtering-Correlation-Id: 060708bc-40c7-4576-88a5-08dbfce6c757