Sep <var data-var='date'>30</var>, <var data-var='time'>02:58</var> PDT Resolved - This incident has been resolved. Sep <var data-var='date'>30</var>, <var data-var='time'>02:48</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Sep <var data-var='date'>30</var>, <var data-var='time'>02:38</var> PDT Identified - The issue has been identified and a fix is being implemented. Sep <var data-var='date'>30</var>, <var data-var='time'>02:16</var> PDT Investigating - We are currently investigating this issue.

Route delays in EU Region

Sep <var data-var='date'>14</var>, <var data-var='time'>03:13</var> PDT Resolved - This incident has been resolved. Sep <var data-var='date'>14</var>, <var data-var='time'>02:55</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Sep <var data-var='date'>14</var>, <var data-var='time'>02:15</var> PDT Investigating - We are currently investigating this issue.

Sep <var data-var='date'> 4</var>, <var data-var='time'>07:33</var> PDT Resolved - This incident has been resolved. Sep <var data-var='date'> 4</var>, <var data-var='time'>07:21</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Sep <var data-var='date'> 4</var>, <var data-var='time'>07:16</var> PDT Investigating - We are currently investigating this issue.

EU Messaging Outage

Sep <var data-var='date'> 4</var>, <var data-var='time'>05:54</var> PDT Resolved - Microsoft has resolved the underlying issue, we are seeing deliveries to M365 process normally. Sep <var data-var='date'> 4</var>, <var data-var='time'>05:22</var> PDT Update - We are continuing to monitor for any further issues. Sep <var data-var='date'> 4</var>, <var data-var='time'>05:20</var> PDT Monitoring - Starting around 08:00 UTC, Microsoft began experiencing an incident causing an increased volume of deferred emails across all M365 regions. The affected responses are returning "451 4.7.500 Server busy". Our teams are actively monitoring the situation. Sending to other email providers is not affected.

Microsoft Incident Resulting in Delivery Issues to M365

Aug <var data-var='date'>31</var>, <var data-var='time'>15:01</var> PDT Resolved - Event queues have caught up and events are processing normally. Aug <var data-var='date'>31</var>, <var data-var='time'>14:28</var> PDT Update - The event processing backlog is steadily decreasing, and we’re continuing to monitor the recovery. We expect all delays to be resolved within the hour. Aug <var data-var='date'>31</var>, <var data-var='time'>13:43</var> PDT Update - The event processing backlog is steadily decreasing, and we’re continuing to monitor the recovery. Aug <var data-var='date'>31</var>, <var data-var='time'>13:13</var> PDT Update - The event processing backlog is steadily decreasing, and we’re continuing to monitor the recovery. We expect all delays to be resolved in the next 2 hours. Aug <var data-var='date'>31</var>, <var data-var='time'>12:38</var> PDT Update - The event processing backlog is steadily decreasing, and we’re continuing to monitor the recovery. Aug <var data-var='date'>31</var>, <var data-var='time'>11:59</var> PDT Update - The delays in event processing are reducing. We expect all delays to be resolved in the next 3 hours. Aug <var data-var='date'>31</var>, <var data-var='time'>10:56</var> PDT Update - We are putting a fix in place for this issue. There is significant backlogs of event logs to process. We update the expected time of resolution when available. Aug <var data-var='date'>31</var>, <var data-var='time'>10:05</var> PDT Update - We are continuing to work on a fix for this issue. Aug <var data-var='date'>31</var>, <var data-var='time'>09:24</var> PDT Update - We are continuing to work on a fix for this issue. Aug <var data-var='date'>31</var>, <var data-var='time'>08:29</var> PDT Update - We are continuing to work on a fix for this issue. Aug <var data-var='date'>31</var>, <var data-var='time'>07:47</var> PDT Identified - We are currently experiencing delays in event log processing in our US region.

Event Log Delays in US Region

Aug <var data-var='date'>27</var>, <var data-var='time'>14:16</var> PDT Resolved - This incident has been resolved. Aug <var data-var='date'>27</var>, <var data-var='time'>14:00</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Aug <var data-var='date'>27</var>, <var data-var='time'>13:45</var> PDT Identified - We have identified the issue and working on restoring service. Aug <var data-var='date'>27</var>, <var data-var='time'>13:38</var> PDT Investigating - We are currently investigating an outage in our EU datacenter

Aug <var data-var='date'>20</var>, <var data-var='time'>10:31</var> PDT Resolved - This incident has been resolved. Aug <var data-var='date'>20</var>, <var data-var='time'>10:09</var> PDT Update - GCP has put a mitigation in place, we are monitoring the results. At this time we are experiencing no impacts. All delayed webhooks and logs have been processed. Aug <var data-var='date'>20</var>, <var data-var='time'>09:30</var> PDT Update - Outbound delivery is operating normally. Currently there are delays for event logs and some webhooks. Aug <var data-var='date'>20</var>, <var data-var='time'>09:19</var> PDT Monitoring - Mailgun is monitoring service impacts in GCP's us-west1 region. We are routing traffic away from impacted infrastructure. Currently we are seeing delays in log processing and a small number of message sends.

GCP Reporting Multi Service Outage in US-West1

Aug <var data-var='date'>17</var>, <var data-var='time'>13:18</var> PDT Resolved - We have received confirmation that an external issue impacting email delivery to Microsoft 365 domains has been resolved. Impacted messages would have received an error stating "5.7.511 Access denied, banned sender" between Friday, August 14th and Monday, August 17th. Any failed messages will need to be resent. Information on retrying messages can be found in our Help Center here: https://help.mailgun.com/hc/en-us/articles/18596982041883-Resending-messages

Email Delivery Failures to Microsoft 365 Domains

Aug <var data-var='date'>11</var>, <var data-var='time'>00:07</var> PDT Resolved - This incident has been resolved. Aug <var data-var='date'>10</var>, <var data-var='time'>23:54</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Aug <var data-var='date'>10</var>, <var data-var='time'>22:32</var> PDT Identified - The issue has been identified and a fix is being implemented. Aug <var data-var='date'>10</var>, <var data-var='time'>22:32</var> PDT Investigating - We are currently experiencing a denial of service attack against our click and open tracking servers in our US regions. Remediation work is underway. Some requests may time out or fail at this time.

Click and Open Tracking Degraded (US Regions)

Jul <var data-var='date'>24</var>, <var data-var='time'>06:49</var> PDT Resolved - All delayed messages have been processed. Systems are operating normally Jul <var data-var='date'>24</var>, <var data-var='time'>06:18</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Delayed messages are being processed. Jul <var data-var='date'>24</var>, <var data-var='time'>06:16</var> PDT Update - We are continuing to work on a fix for this issue. Jul <var data-var='date'>24</var>, <var data-var='time'>05:38</var> PDT Identified - The issue has been identified and a fix is being implemented. Jul <var data-var='date'>24</var>, <var data-var='time'>05:27</var> PDT Investigating - Inbound messages processed by routes are currently experiencing delays in processing.

Jul <var data-var='date'>13</var>, <var data-var='time'>12:56</var> PDT Resolved - This incident has been resolved. Jul <var data-var='date'>13</var>, <var data-var='time'>12:45</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Jul <var data-var='date'>13</var>, <var data-var='time'>12:24</var> PDT Identified - The issue has been identified and a fix is being implemented. Jul <var data-var='date'>13</var>, <var data-var='time'>11:51</var> PDT Update - We are continuing to investigate this issue. Jul <var data-var='date'>13</var>, <var data-var='time'>11:23</var> PDT Investigating - We are currently investigating this issue.

US Email Validation 500's and Mailgun Control Panel Unavailable

Jul <var data-var='date'>10</var>, <var data-var='time'>13:11</var> PDT Resolved - This incident has been resolved. Jul <var data-var='date'>10</var>, <var data-var='time'>12:58</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Jul <var data-var='date'>10</var>, <var data-var='time'>12:48</var> PDT Update - A fix is in the process of being rolled out to impacted regions. Jul <var data-var='date'>10</var>, <var data-var='time'>12:33</var> PDT Update - We are continuing to work on a fix for this issue. Jul <var data-var='date'>10</var>, <var data-var='time'>11:59</var> PDT Update - We are continuing to work on a fix for this issue. Jul <var data-var='date'>10</var>, <var data-var='time'>11:36</var> PDT Update - We are continuing to work on a fix for this issue. Jul <var data-var='date'>10</var>, <var data-var='time'>11:07</var> PDT Identified - The issue has been identified and a fix is being implemented. Jul <var data-var='date'>10</var>, <var data-var='time'>11:07</var> PDT Monitoring - A fix has been implemented and we are monitoring the results.

Mailgun Control Panel Unavailable For Some Users

Jun <var data-var='date'>25</var>, <var data-var='time'>13:35</var> PDT Resolved - This incident has been resolved. Jun <var data-var='date'>25</var>, <var data-var='time'>13:24</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Jun <var data-var='date'>25</var>, <var data-var='time'>13:21</var> PDT Identified - The issue has been identified and a fix is being implemented. Jun <var data-var='date'>25</var>, <var data-var='time'>13:03</var> PDT Update - We are continuing to investigate this issue. Jun <var data-var='date'>25</var>, <var data-var='time'>12:21</var> PDT Investigating - We are currently investigating an issue with email previews not working. Outbound processing, inbound processing, logs and webhook delivery are operating normally.

Inspect previews not rendering

Jun <var data-var='date'>23</var>, <var data-var='time'>09:09</var> PDT Resolved - This incident has been resolved. Jun <var data-var='date'>23</var>, <var data-var='time'>08:56</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Jun <var data-var='date'>23</var>, <var data-var='time'>08:25</var> PDT Update - We are continuing to work on a fix for this issue. Some customers may see log delays. Outbound processing, inbound processing, and webhook delivery continue operating normally. Jun <var data-var='date'>23</var>, <var data-var='time'>07:52</var> PDT Update - We are continuing to work on a fix for this issue. Some customers may see log delays. Outbound processing, inbound processing, and webhook delivery are operating normally. Jun <var data-var='date'>23</var>, <var data-var='time'>07:13</var> PDT Update - We are continuing to work on a fix for this issue. Jun <var data-var='date'>23</var>, <var data-var='time'>06:10</var> PDT Update - We are continuing to work on a fix for this issue. Jun <var data-var='date'>23</var>, <var data-var='time'>05:07</var> PDT Update - We are continuing to work on a fix for this issue. Jun <var data-var='date'>23</var>, <var data-var='time'>04:19</var> PDT Update - We are continuing to work on a fix for this issue. Jun <var data-var='date'>23</var>, <var data-var='time'>03:41</var> PDT Update - We are continuing to work on a fix for this issue. Jun <var data-var='date'>23</var>, <var data-var='time'>03:04</var> PDT Update - We are continuing to work on a fix for this issue. Jun <var data-var='date'>23</var>, <var data-var='time'>02:30</var> PDT Identified - The issue has been identified and a fix is being implemented. Jun <var data-var='date'>23</var>, <var data-var='time'>02:14</var> PDT Investigating - Customers using the events/logs APIs or viewing logs in the customer portal may see errors in viewing or retrieving logs. These errors are only affecting a subset of our customers.

Log retrieval errors in the US region

Jun <var data-var='date'>18</var>, <var data-var='time'>03:24</var> PDT Resolved - This incident has been resolved. Jun <var data-var='date'>18</var>, <var data-var='time'>03:11</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Jun <var data-var='date'>18</var>, <var data-var='time'>02:53</var> PDT Identified - The issue has been identified and a fix is being implemented. Jun <var data-var='date'>18</var>, <var data-var='time'>02:11</var> PDT Update - We are continuing to investigate this issue. Jun <var data-var='date'>18</var>, <var data-var='time'>01:34</var> PDT Investigating - Customers using the events/logs APIs or viewing logs in the customer portal may see delays in some events appearing. These delays are only affecting a subset of our customers.

Partial Delay in Event Processing for US Region

Jun <var data-var='date'>16</var>, <var data-var='time'>10:34</var> PDT Resolved - This incident has been resolved. Jun <var data-var='date'>16</var>, <var data-var='time'>09:16</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Jun <var data-var='date'>16</var>, <var data-var='time'>08:48</var> PDT Update - We are continuing to investigate this issue. Jun <var data-var='date'>16</var>, <var data-var='time'>08:08</var> PDT Update - We are continuing to investigate this issue. Jun <var data-var='date'>16</var>, <var data-var='time'>07:28</var> PDT Investigating - Logs are currently experiencing delays of 15 minutes in Mailgun's US region. Outbound processing, inbound processing, and webhook delivery are operating normally.

Delayed logs in US region

Jun <var data-var='date'> 5</var>, <var data-var='time'>07:15</var> PDT Resolved - This incident has been resolved. Jun <var data-var='date'> 5</var>, <var data-var='time'>07:04</var> PDT Monitoring - A fix has been implemented and we are monitoring results. Outbound processing, inbound processing, and webhook delivery continue operating normally. Jun <var data-var='date'> 5</var>, <var data-var='time'>06:26</var> PDT Investigating - Logs are currently experiencing delays of 15 minutes in Mailgun's US region. Outbound processing, inbound processing, and webhook delivery are operating normally.

Jun <var data-var='date'> 4</var>, <var data-var='time'>14:04</var> PDT Resolved - This incident has been resolved. Jun <var data-var='date'> 4</var>, <var data-var='time'>13:48</var> PDT Monitoring - Logs are flowing normally and engineers continue to monitor. Jun <var data-var='date'> 4</var>, <var data-var='time'>12:52</var> PDT Update - We are continuing to investigate this issue. Outbound processing, inbound processing, and webhook delivery continue to operate normally. Jun <var data-var='date'> 4</var>, <var data-var='time'>11:42</var> PDT Update - We are continuing to investigate this issue. Jun <var data-var='date'> 4</var>, <var data-var='time'>11:01</var> PDT Investigating - Logs are currently experiencing delays of 15 minutes in Mailgun's US region. Outbound processing, inbound processing, and webhook delivery are operating normally.

May <var data-var='date'>25</var>, <var data-var='time'>08:55</var> PDT Resolved - This incident has been resolved. May <var data-var='date'>25</var>, <var data-var='time'>08:45</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. May <var data-var='date'>25</var>, <var data-var='time'>08:35</var> PDT Update - We are continuing to work on a fix for this issue. May <var data-var='date'>25</var>, <var data-var='time'>07:46</var> PDT Identified - The issue has been identified and a fix is being implemented. May <var data-var='date'>25</var>, <var data-var='time'>07:10</var> PDT Update - We are continuing to investigate this issue. May <var data-var='date'>25</var>, <var data-var='time'>06:38</var> PDT Investigating - We are currently investigating this issue. May <var data-var='date'>25</var>, <var data-var='time'>06:00</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. May <var data-var='date'>25</var>, <var data-var='time'>05:59</var> PDT Update - A fix has been implemented and we are monitoring the results. May <var data-var='date'>25</var>, <var data-var='time'>05:48</var> PDT Update - We are continuing to investigate this issue. May <var data-var='date'>25</var>, <var data-var='time'>05:18</var> PDT Investigating - We are currently investigating this issue.

Delayed sending in EU

May <var data-var='date'> 7</var>, <var data-var='time'>11:42</var> PDT Resolved - This incident has been resolved. May <var data-var='date'> 7</var>, <var data-var='time'>05:40</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. May <var data-var='date'> 6</var>, <var data-var='time'>12:46</var> PDT Update - We are continuing to work on a fix for this issue. May <var data-var='date'> 6</var>, <var data-var='time'>08:40</var> PDT Identified - Customers creating domains with Automatic Sender Security may have CNAME records with no corresponding TXT records reflecting DKIM keys. A fix for this issue is being prepared.

Automatic Sender Security Records Not Provisioning

Apr <var data-var='date'>17</var>, <var data-var='time'>10:15</var> PDT Resolved - This incident has been resolved. Apr <var data-var='date'>17</var>, <var data-var='time'>10:05</var> PDT Update - We are continuing to monitor for any further issues. Apr <var data-var='date'>17</var>, <var data-var='time'>10:05</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Apr <var data-var='date'>17</var>, <var data-var='time'>09:45</var> PDT Identified - The issue has been identified and a fix is being implemented.

Elevated Timeouts for Validations

Apr <var data-var='date'>15</var>, <var data-var='time'>08:34</var> PDT Resolved - This incident has been resolved. Apr <var data-var='date'>15</var>, <var data-var='time'>07:02</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Apr <var data-var='date'>15</var>, <var data-var='time'>06:42</var> PDT Identified - The issue has been identified and a fix is being implemented. Apr <var data-var='date'>15</var>, <var data-var='time'>06:40</var> PDT Investigating - We are currently investigating an issue where customers making HTTPS requests to our API without Server Name Indication (SNI) enabled are being presented with an expired SSL/TLS certificate. This results in certificate validation failures for affected clients.

TLS Certificate Validation Errors for Clients Without SNI

Apr <var data-var='date'> 7</var>, <var data-var='time'>10:42</var> PDT Resolved - This incident has been resolved. Elevated 500 errors beginning at 17:25 UTC resolved at 17:30 UTC Apr <var data-var='date'> 7</var>, <var data-var='time'>10:32</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Apr <var data-var='date'> 7</var>, <var data-var='time'>10:30</var> PDT Identified - The issue has been identified and a fix is being implemented.

Elevated 500 errors on Messages endpoint in US

Mar <var data-var='date'>19</var>, <var data-var='time'>11:53</var> PDT Resolved - A fix has been deployed and systems are back to normal. Mar <var data-var='date'>19</var>, <var data-var='time'>11:43</var> PDT Identified - Some requests may be incorrectly failing with 401 error codes in our US region.

Elevated 401 errors in US Region

Mar <var data-var='date'>13</var>, <var data-var='time'>05:49</var> PDT Resolved - The incident has been resolved. Mar <var data-var='date'>13</var>, <var data-var='time'>05:33</var> PDT Monitoring - A fix has been implemented and we are monitoring the results. Mar <var data-var='date'>13</var>, <var data-var='time'>05:19</var> PDT Identified - The issue has been identified and a fix is being implemented. Mar <var data-var='date'>13</var>, <var data-var='time'>04:56</var> PDT Update - We are continuing to investigate this issue. Mar <var data-var='date'>13</var>, <var data-var='time'>04:29</var> PDT Investigating - We are currently investigating this issue.

Is Mailgun down?

Mailgun status is UP

Lastest published events

Route delays in EU Region

Route delays in EU Region

EU Messaging Outage

Mailgun Services, Components and Regions

Recent Mailgun events

Route delays in EU Region

Route delays in EU Region

EU Messaging Outage

Microsoft Incident Resulting in Delivery Issues to M365

Event Log Delays in US Region

EU Messaging Outage