https://go.microsoft.com/fwlink/?LinkId=397497

Last Checked: Jul 22, 2019, 11:27 EDT

IP Address: 23.75.45.205
ASN #: AS16625 AKAMAI-AS - Akamai Technologies, Inc., US
Location: Data unavailable.
URL Reputation:
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  • Unknown This URL is not identified as malicious in the PhishTank Database.
  • Unknown PhishCheck thinks this URL is likely not a phish.
  • Unknown OpenPhish: URL not in feed.

Other submissions on 23.75.45.205:

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  • http://go.microsoft.com/fwlink/?linkid=624682&clcid=0x409&campaign=ct!!e08d0020f1584ba7886c12a233e72a22

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  • https://docs.microsoft.com/office365/securitycompliance/dynamic-delivery-and-previewing?redirectSourcePath=%252fen-us%252farticle%252fLearn-more-about-dynamic-delivery-and-previewing-with-ATP-safe-attachments-f16c9928-8e3d-4219-b994-271dc9a16272

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  • http://go.microsoft.com/fwlink/?LinkID=526655

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  • http://go.microsoft.com/fwlink/?LinkID=263818

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Previous checks:

                               fgets: Connection reset by peer

                             
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class="tree-expander" data-bi-name="tree-expander"><span class="tree-expander-indicator docon docon-chevron-right-light" aria-hidden="true"></span>Remote domains</span></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/message-format-and-transmission">Message format and transmission</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/configure-external-postmaster-address">Configure external postmaster address</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/manage-mailboxes-with-office-365">Manage mailboxes with Office 365</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/manage-mail-flow-using-third-party-cloud">Manage mail flow using third-party cloud</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/manage-mail-flow-for-multiple-locations">Manage mail flow for multiple locations</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/manage-mail-flow-on-office-365-and-on-prem">Manage mail flow on Office 365 and on-prem</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/how-to-set-up-a-multifunction-device-or-application-to-send-email-using-office-3">How to set up a multifunction device or application to send email using Office 365</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/how-to-configure-iis-for-relay-with-office-365">How to configure IIS for relay with Office 365</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/fix-issues-with-printers-scanners-and-lob-applications-that-send-email-using-off">Fix issues with printers, scanners, and LOB applications that send email using Office 365</a></li><li class="tree-item is-expanded" role="treeitem" tabindex="-1" aria-expanded="true"><span class="tree-expander" data-bi-name="tree-expander"><span class="tree-expander-indicator docon docon-chevron-right-light" aria-hidden="true"></span>Email non-delivery reports in Exchange Online</span><ul class="tree-group" role="group"><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/non-delivery-reports-in-exchange-online">Email non-delivery reports in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-5-1-8-in-exchange-online">Fix email delivery issues for error code 5.1.8 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf is-selected" role="treeitem" tabindex="0" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-5-4-6-through-5-4-20-in-exchange-online">Fix email delivery issues for error code 5.4.6 through 5.4.20 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-5-7-12-in-exchange-online">Fix email delivery issues for error code 5.7.12 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-5-7-13-or-5-7-135-in-exchange-online">Fix email delivery issues for error code 5.7.13 or 5.7.135 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-5-7-124-in-exchange-online">Fix email delivery issues for error code 5.7.124 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-5-7-133-in-exchange-online">Fix email delivery issues for error code 5.7.133 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-5-7-134-in-exchange-online">Fix email delivery issues for error code 5.7.134 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-5-7-136-in-exchange-online">Fix email delivery issues for error code 5.7.136 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-451-4-7-500-699-asxxx-in-exchange-online">Fix email delivery issues for error code 451 4.7.500-699 (ASxxx) in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-550-4-4-7-in-exchange-online">Fix email delivery issues for error code 550 4.4.7 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-550-5-1-0-in-exchange-online">Fix email delivery issues for error code 550 5.1.0 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-550-5-1-1-through-5-1-20-in-exchange-online">Fix email delivery issues for error code 550 5.1.1 through 5.1.20 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-550-5-1-10-in-exchange-online">Fix email delivery issues for error code 550 5.1.10 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-550-5-4-1-in-exchange-online">Fix email delivery issues for error code 550 5.4.1 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-550-5-6-11-in-exchange-online">Fix email delivery issues for error code 550 5.6.11 in Exchange Online</a></li><li role="none"><a class="tree-item is-leaf" role="treeitem" tabindex="-1" data-bi-name="tree-leaf" href="https://docs.microsoft.com/en-us/exchange/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-550-5-7-1-in-exchange-online">Fix email delivery issues for error code 550 5.7.1 in Exchange Online</a></li></ul></li></ul></li><li class="tree-item" role="treeitem" tabindex="-1" aria-expanded="false"><span class="tree-expander" data-bi-name="tree-expander"><span class="tree-expander-indicator docon docon-chevron-right-light" aria-hidden="true"></span>Recipients in Exchange Online</span></li><li class="tree-item" role="treeitem" tabindex="-1" aria-expanded="false"><span class="tree-expander" data-bi-name="tree-expander"><span class="tree-expander-indicator docon docon-chevron-right-light" aria-hidden="true"></span>Migrate multiple email accounts</span></li><li class="tree-item" role="treeitem" tabindex="-1" aria-expanded="false"><span class="tree-expander" data-bi-name="tree-expander"><span class="tree-expander-indicator docon docon-chevron-right-light" aria-hidden="true"></span>Collaboration</span></li><li class="tree-item" role="treeitem" tabindex="-1" aria-expanded="false"><span class="tree-expander" data-bi-name="tree-expander"><span class="tree-expander-indicator docon docon-chevron-right-light" aria-hidden="true"></span>Address books</span></li><li class="tree-item" role="treeitem" tabindex="-1" aria-expanded="false"><span class="tree-expander" data-bi-name="tree-expander"><span class="tree-expander-indicator docon docon-chevron-right-light" aria-hidden="true"></span>Sharing</span></li><li class="tree-item" role="treeitem" tabindex="-1" aria-expanded="false"><span class="tree-expander" data-bi-name="tree-expander"><span class="tree-expander-indicator docon docon-chevron-right-light" aria-hidden="true"></span>Voice mail: Unified Messaging</span></li><li class="tree-item" role="treeitem" tabindex="-1" aria-expanded="false"><span class="tree-expander" data-bi-name="tree-expander"><span class="tree-expander-indicator docon docon-chevron-right-light" aria-hidden="true"></span>Clients and mobile in Exchange Online</span></li><li class="tree-item" role="treeitem" tabindex="-1" aria-expanded="false"><span class="tree-expander" data-bi-name="tree-expander"><span 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						<h1 id="fix-email-delivery-issues-for-error-code-546-through-5420-in-exchange-online" sourcefile="ExchangeOnline/mail-flow-best-practices/non-delivery-reports-in-exchange-online/fix-error-code-5-4-6-through-5-4-20-in-exchange-online.md" sourcestartlinenumber="20">Fix email delivery issues for error code 5.4.6 through 5.4.20 in Exchange Online</h1>

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							<h3>In this article</h3>
						<ol><li><a href="#why-did-i-get-this-bounce-message">Why did I get this bounce message?</a></li><li><a href="#i-got-this-bounce-message-how-do-i-fix-it">I got this bounce message. How do I fix it?</a></li><li><a href="#im-an-email-admin-how-do-i-fix-this">I'm an email admin. How do I fix this?</a></li><li><a href="#causes-for-ndr-546-and-what-does-this-error-mean">Causes for NDR 5.4.6 and what does this error mean?</a></li><li><a href="#still-need-help-with-error-codes-546-through-5420">Still need help with error codes 5.4.6 through 5.4.20?</a></li><li><a href="#see-also">See also</a></li></ol></nav>


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<p>It's frustrating when you get an error after sending an email message. This topic describes what you can do if see the error codes 5.4.6 through 5.4.20 in a non-delivery report non-delivery report (also known as an NDR, bounce message, delivery status notification, or DSN).</p>
<h2 id="why-did-i-get-this-bounce-message">Why did I get this bounce message?<a class="docon docon-link heading-anchor" href="#why-did-i-get-this-bounce-message" aria-labelledby="why-did-i-get-this-bounce-message"></a></h2>
<p>There can be several causes for error code 5.4.6, but a likely cause is if the message hop count is exceeded or the route the message is delivered through is broken. Some causes and solutions are provided in this topic. The information here applies to a range of error codes 5.4.6 through 5.4.20.</p>
<p>Use the information in the NDR to help you decide how to fix the problem.</p>
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<td style="text-align: left;" aria-label="No value"><img src="../../exchangeonline/media/31425afd-41a9-435e-aa85-6886277c369b.png" alt="Email user icon" data-linktype="relative-path"></td>
<td style="text-align: left;"><a href="#i-got-this-bounce-message-how-do-i-fix-it" data-linktype="self-bookmark">I got this bounce message. How do I fix it?</a></td>
<td style="text-align: left;" aria-label="No value"><img src="../../exchangeonline/media/3d4c569e-b819-4a29-86b1-4b9619cf2acf.png" alt="Email admin icon" data-linktype="relative-path"></td>
<td style="text-align: left;"><a href="#im-an-email-admin-how-do-i-fix-this" data-linktype="self-bookmark">I'm an email admin. How do I fix this?</a></td>
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</tbody>
</table></div>
<h2 id="i-got-this-bounce-message-how-do-i-fix-it">I got this bounce message. How do I fix it?<a class="docon docon-link heading-anchor" href="#i-got-this-bounce-message-how-do-i-fix-it" aria-labelledby="i-got-this-bounce-message-how-do-i-fix-it"></a></h2>
<p>Typically, the issues that cause error codes 5.4.6 through 5.4.20 can only be fixed by an Exchange Online admin and not the average email sender. Contact your email admin and refer them to this information so they can try to resolve the issue for you.</p>
<h2 id="im-an-email-admin-how-do-i-fix-this">I'm an email admin. How do I fix this?<a class="docon docon-link heading-anchor" href="#im-an-email-admin-how-do-i-fix-this" aria-labelledby="im-an-email-admin-how-do-i-fix-this"></a></h2>
<p>The most common issues and fixes are described in the following sections.</p>
<h3 id="accepted-domain-issues">Accepted domain issues<a class="docon docon-link heading-anchor" href="#accepted-domain-issues" aria-labelledby="accepted-domain-issues"></a></h3>
<p>Verify that the recipient's domain is configured as an authoritative accepted domain in Exchange Online. For more information, see <a href="https://technet.microsoft.com/library/jj945194.aspx" data-linktype="external">Manage Accepted Domains in Exchange Online</a>.</p>
<h3 id="hybrid-configuration-issues">Hybrid configuration issues<a class="docon docon-link heading-anchor" href="#hybrid-configuration-issues" aria-labelledby="hybrid-configuration-issues"></a></h3>
<p>If your domain is part of a hybrid deployment between Exchange and Exchange Online, check the following items based on your configuration.</p>
<h4 id="you-route-all-incoming-mail-for-your-hybrid-domain-through-exchange-online">You route all incoming mail for your hybrid domain through Exchange Online<a class="docon docon-link heading-anchor" href="#you-route-all-incoming-mail-for-your-hybrid-domain-through-exchange-online" aria-labelledby="you-route-all-incoming-mail-for-your-hybrid-domain-through-exchange-online"></a></h4>
<p>This error can happen when the MX record for your hybrid domain points to Exchange Online, and the outbound connector that's used to route email from Exchange Online to your on-premises Exchange organization is configured to use DNS routing instead of smart host routing.</p>
<p>To fix the problem, configure a dedicated outbound connector that uses smart host routing and that has your on-premises hybrid server configured as a smart host. The easiest way to fix the problem is to re-run the Hybrid Configuration Wizard in your on-premises Exchange organization. Or, you can verify the configuration of the connector that's used for hybrid by following these steps:</p>
<ol>
<li><p>Open the Office 365 portal at <a href="https://go.microsoft.com/fwlink/p/?LinkID=402333" data-linktype="external">https://portal.office.com</a>, and then click <strong>Admin</strong> &gt; <strong>Exchange</strong>.</p>
</li>
<li><p>In the Exchange admin center (EAC), click <strong>Mail Flow</strong> &gt; <strong>Connectors</strong>. In the <strong>Outbound connectors</strong> section, select the connector that's used for hybrid, and then click <strong>Edit</strong>.</p>
</li>
<li><p>On the <strong>Delivery</strong> tab, verify that <strong>Route mail through smart hosts</strong> is selected and that the correct IP address or FQDN is specified for the smart host in your on-premises Exchange organization.</p>
</li>
</ol>
<h4 id="you-route-all-outgoing-mail-from-exchange-online-through-your-on-premises-hybrid-server">You route all outgoing mail from Exchange Online through your on-premises hybrid server<a class="docon docon-link heading-anchor" href="#you-route-all-outgoing-mail-from-exchange-online-through-your-on-premises-hybrid-server" aria-labelledby="you-route-all-outgoing-mail-from-exchange-online-through-your-on-premises-hybrid-server"></a></h4>
<p>This configuration is controlled by the value of the <em>RouteAllMessagesViaOnPremises</em> parameter on the outbound connector that's used for hybrid. When the value of this parameter is <code>$true</code>, you're routing all outgoing mail from Exchange Online through your on-premises hybrid server. You can verify this value by running the following command in <a href="https://docs.microsoft.com/powershell/exchange/exchange-online/exchange-online-powershell" data-linktype="external">Exchange Online PowerShell</a>:</p>
<div class="codeHeader" id="code-try-0" data-bi-name="code-header"><span class="language"></span>
			<button class="action" data-bi-name="copy" aria-label="Copy code">
				<span class="docon docon-edit-copy" role="presentation"></span>
				<span>Copy</span>
			</button></div><pre tabindex="0" class="has-inner-focus"><code data-author-content="Get-OutboundConnector -Identity &quot;<Connector Name>&quot; | Format-List Name,RouteAllMessagesViaOnPremises
">Get-OutboundConnector -Identity "&lt;Connector Name&gt;" | Format-List Name,RouteAllMessagesViaOnPremises
</code></pre>
<p>In this configuration, the error is caused by either of the following issues on the inbound connector from your on-premises Exchange organization to Exchange Online:</p>
<ul>
<li><p>You don't have an inbound connector that has the <strong>Connector Type</strong> value <strong>On-premises</strong>.</p>
</li>
<li><p>The inbound connector is scoped to one or more accepted domains.</p>
</li>
</ul>
<p>To fix the problem, configure a dedicated inbound connector that has the <strong>Connector Type</strong> value <em>On-premises</em>* and that's not scoped to any accepted domains. The easiest way to fix the problem is to re-run the Hybrid Configuration Wizard in the on-premises Exchange organization. Or, you can verify the configuration of the Inbound connector that's used for hybrid by following these steps:</p>
<ol>
<li><p>Open the Office 365 portal at <a href="https://go.microsoft.com/fwlink/p/?LinkID=402333" data-linktype="external">https://portal.office.com</a>, and then click <strong>Admin</strong> &gt; <strong>Exchange</strong>.</p>
</li>
<li><p>In the EAC, click <strong>Mail Flow</strong> &gt; <strong>Connectors</strong>. In the <strong>Inbound connectors</strong> section, select the connector that's used for hybrid, and then click <strong>Edit</strong> <img src="../../exchangeonline/media/6f22ff21-4c94-4b91-a490-173a853c06e3.gif" alt="Edit icon" data-linktype="relative-path">. Verify the following information:</p>
<ul>
<li><p><strong>General</strong>: Verify that <strong>On-premises</strong> is selected.</p>
</li>
<li><p><strong>Scope</strong>: Verify that <strong>Accepted domains</strong> is empty.</p>
</li>
</ul>
</li>
</ol>
<p>For more information about mail routing in hybrid deployments, see <a href="https://docs.microsoft.com/exchange/transport-routing" data-linktype="external">Transport routing in Exchange hybrid deployments</a>.</p>
<h2 id="causes-for-ndr-546-and-what-does-this-error-mean">Causes for NDR 5.4.6 and what does this error mean?<a class="docon docon-link heading-anchor" href="#causes-for-ndr-546-and-what-does-this-error-mean" aria-labelledby="causes-for-ndr-546-and-what-does-this-error-mean"></a></h2>
<p>There are two likely possibilities:</p>
<ul>
<li><p>Based on the domain in the recipient's email address, your Exchange Online organization accepted the message, but then couldn't correctly route the message to the recipient. This is likely caused by accepted domain configuration issues.</p>
</li>
<li><p>In hybrid environments, there are misconfigured connectors in your Exchange Online organization.</p>
</li>
</ul>
<h3 id="details-about-this-exchange-ndr-related-to-hop-count-exceeded">Details about this Exchange NDR, related to hop count exceeded<a class="docon docon-link heading-anchor" href="#details-about-this-exchange-ndr-related-to-hop-count-exceeded" aria-labelledby="details-about-this-exchange-ndr-related-to-hop-count-exceeded"></a></h3>
<p>The NDR for this specific error might contain some or all of the following information:</p>
<ul>
<li><p><strong>User information section</strong></p>
<ul>
<li><p>Delivery has failed to these recipients or groups:</p>
<p>&lt;email addresses&gt;</p>
<p>A problem occurred while delivering this message to this email address. Try sending this message again.</p>
</li>
<li><p>The outbound connection attempt was not answered because either the remote system was busy or it was unable to take delivery of the message.</p>
</li>
</ul>
</li>
<li><p><strong>Diagnostic information for administrators section</strong></p>
<ul>
<li><code>#5.4.6 smtp;554 5.4.6 Hop count exceeded - possible mail loop&gt; #SMTP#</code></li>
</ul>
</li>
</ul>
<h2 id="still-need-help-with-error-codes-546-through-5420">Still need help with error codes 5.4.6 through 5.4.20?<a class="docon docon-link heading-anchor" href="#still-need-help-with-error-codes-546-through-5420" aria-labelledby="still-need-help-with-error-codes-546-through-5420"></a></h2>
<p><a href="https://go.microsoft.com/fwlink/p/?LinkId=518605" data-linktype="external"><img src="../../exchangeonline/media/12a746cc-184b-4288-908c-f718ce9c4ba5.png" alt="Get help from the Office 365 community forums" data-linktype="relative-path"></a></p>
<p><a href="https://go.microsoft.com/fwlink/p/?LinkId=519124" data-linktype="external"><img src="../../exchangeonline/media/10862798-181d-47a5-ae4f-3f8d5a2874d4.png" alt="Admins: Sign in and create a service request" data-linktype="relative-path"></a></p>
<p><a href="https://go.microsoft.com/fwlink/p/?LinkID=518322" data-linktype="external"><img src="../../exchangeonline/media/9f262e67-e8c9-4fc0-85c2-b3f4cfbc064e.png" alt="Admins: Call Support" data-linktype="relative-path"></a></p>
<h2 id="see-also">See also<a class="docon docon-link heading-anchor" href="#see-also" aria-labelledby="see-also"></a></h2>
<p><a href="non-delivery-reports-in-exchange-online" data-linktype="relative-path">Email non-delivery reports in Exchange Online</a></p>

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