[http://products.office.com/en-us/CMSImages/Office365Logo_Orange.png?version=...] Your message to jiangyin@indiana.edu couldn't be delivered.

When Office 365 tried to send your message, the receiving email server outside Office 365 reported an error.

sqm2017 Office 365 jiangyin Sender Action Required

Policy violation or system error

How to Fix It Check the "Reported Error" from the "Error Details" section shown below for more information about the problem. The error might tell you what went wrong and how to fix it. For example, if the error states that the message was blocked due to a potential virus or because the message was too large, try sending the message again without attachments. If you're not able to fix the problem, it's likely that only the recipient's email admin can fix it. Contact the recipient by some other means (by phone, for example) and ask them to tell their email admin about the problem. Give them the "Reported Error" from the "Error Details" section below.

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More Info for Email Admins Status code: 550 5.0.350

The error reported by the receiving server wasn't specific enough to determine the exact nature of the problem. These errors often indicate the message violates a security or policy setting configured on the recipient's email servers.

If the sender is unable to fix the problem by modifying their message, then it's likely a problem that only the recipient's email admin can fix. Try the following:

Check the error for information about the problem - The "Reported Error" returned by the external email server can be found in the "Error Details" section below. This error might tell you what went wrong and provide clues for how to fix it. For example, if the error states the message was rejected due a Sender Policy Framework (SPF) issue, then you'll have to work with your domain registrar to correctly configure your domain's SPF records.

Check the error for information about where the problem is happening - For example, look for a domain name like contoso.com. A domain name in the error might suggest who is responsible for the error. It could be the recipient's email server, or it could be a third-party service that your organization or the recipient's organization is using to process or filter email messages.

If you can't fix the problem, contact the responsible party's email admin - Give them the error code and error message from this non-delivery report (NDR) to help them troubleshoot the issue. For security or policy violation issues, it might be sufficient for them to just add your sending IP addresses or domain to their allowed senders list.

It's likely that only the recipient's email admin can fix the problem. Unfortunately, it's unlikely Office 365 Support will be able to help with these kinds of externally reported errors.

Original Message Details Created Date: 10/14/2017 5:36:47 PM Sender Address: sqm2017@nikhef.nl Recipient Address: jiangyin@indiana.edu Subject: [Indico] SQM2017 proceedings: extension of the deadline

Error Details Reported error: 550 5.0.350 Remote server returned an error -> 550 #5.1.0 Address rejected. DSN generated by: DB5PR06MB1430.eurprd06.prod.outlook.com Remote server: external-relay.indiana.edu

Message Hops HOP TIME (UTC) FROM TO WITH RELAY TIME 1 10/14/2017 5:37:06 PM indico-wk1.cern.ch cernmx.cern.ch Microsoft SMTP Server 19 sec 2 10/14/2017 5:38:04 PM cernmx.cern.ch HE1EUR02FT017.mail.protection.outlook.com Microsoft SMTP Server (version=TLS1_0, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA_P384) 58 sec 3 10/14/2017 5:38:05 PM HE1EUR02FT017.eop-EUR02.prod.protection.outlook.com HE1PR0601CA0040.outlook.office365.com Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) 1 sec 4 10/14/2017 5:38:05 PM HE1PR0601CA0040.eurprd06.prod.outlook.com DB5PR06MB1430.eurprd06.prod.outlook.com Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) *

Original Message Headers

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indiana.edu; dkim=none (message not signed) header.d=none;indiana.edu; dmarc=none action=none header.from=nikhef.nl; Received-SPF: None (protection.outlook.com: nikhef.nl does not designate permitted sender hosts) Received: from cernmx.cern.ch (188.184.36.16) by HE1EUR02FT017.mail.protection.outlook.com (10.152.10.73) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA_P384) id 15.20.77.10 via Frontend Transport; Sat, 14 Oct 2017 17:38:04 +0000 Received: from indico-wk1.cern.ch (2001:1458:201:2b::100:1f) by cernmx.cern.ch (2001:1458:201:65::100:18) with Microsoft SMTP Server id 14.3.319.2; Sat, 14 Oct 2017 19:37:06 +0200 Content-Type: multipart/mixed; boundary="===============5064597454366267427==" MIME-Version: 1.0 Subject: [Indico] SQM2017 proceedings: extension of the deadline From: sqm2017@nikhef.nl To: jiangyin@indiana.edu Date: Sat, 14 Oct 2017 17:36:47 +0000 Message-ID: 9893fcae-563c-4c34-8cc2-f3281259f7b4@CERNMX14.cern.ch Return-Path: sqm2017@nikhef.nl X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:188.184.36.16;IPV:NLI;CTRY:CH;EFV:NLI;SFV:NSPM;SFS:(10009020)(376002)(39860400002)(346002)(2980300002)(428002)(189002)(45984002)(199003)(106466001)(53416004)(786003)(606006)(512874002)(7636002)(101416001)(31686004)(105586002)(316002)(2351001)(5660300001)(16586007)(33646002)(498600001)(347745004)(10550400002)(413944005)(54356999)(189998001)(966005)(6916009)(50986999)(31696002)(2171002)(5000100001)(6306002)(16799955002)(89386003)(9686003)(84326002)(2906002)(246002)(74482002)(4610100001)(2876002)(86152003)(8676002)(7066003)(104016004)(8936002)(86362001)(6666003)(2476003)(356003)(15188155005)(236005)(24616003)(19623215001);DIR:OUT;SFP:1101;SCL:1;SRVR:DB5PR06MB1430;H:cernmx.cern.ch;FPR:;SPF:None;PTR:cernmx14.cern.ch;MX:1;A:0;LANG:en; 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