May <var data-var='date'>14</var>, <var data-var='time'>02:00</var> EDT Completed - The scheduled maintenance has been completed. May <var data-var='date'>13</var>, <var data-var='time'>22:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'>11</var>, <var data-var='time'>10:34</var> EDT Scheduled - We will be performing scheduled maintenance on Shield on Wed, May 13, 2026, at 10:00 PM ET. This update includes essential database improvements and may result in brief delays in mail flow. Maintenance Window: 4 hours Expected Impact: Mail flow may be interrupted for up to 30 minutes during the window. Important Note: This will only cause a temporary delivery delay — no emails will be lost. Thank you for your understanding as we work to enhance Shield’s performance and reliability.

Scheduled Maintenance for Shield

May <var data-var='date'> 1</var>, <var data-var='time'>11:00</var> EDT Resolved - This morning, a third-party package repository used by our virus scanning infrastructure experienced an outage following an attack on its systems. Because our virus scanning instances rely on this repository at startup to pull the latest files and configurations, affected instances were unable to start. This reduced the capacity of our virus-scanning cluster below demand. When a virus scan cannot complete, our system quarantines the email as a precaution. As a result, emails processed during this window were quarantined rather than delivered to inboxes. No emails were lost. Affected emails can be released from quarantine by users or admins. Resolution The virus scanning cluster has been reconfigured to pull packages directly from the source repository, eliminating the dependency on the third-party intermediary. Monitoring and alerting thresholds have also been updated to surface this class of issue more quickly in the future. The issue is fully resolved.

Virus scans in CloudFilter were unable to complete

Apr <var data-var='date'> 9</var>, <var data-var='time'>01:00</var> EDT Completed - The scheduled maintenance has been completed. Apr <var data-var='date'> 8</var>, <var data-var='time'>21:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Apr <var data-var='date'> 6</var>, <var data-var='time'>18:02</var> EDT Scheduled - We will be performing scheduled maintenance on Shield on Wed, Apr 8, 2026, at 9:00 PM ET. This update includes essential database improvements and may result in brief delays in mail flow. Maintenance Window: 4 hours Expected Impact: Mail flow may be interrupted for up to 30 minutes during the window. Important Note: This will only cause a temporary delivery delay — no emails will be lost. Thank you for your understanding as we work to enhance Shield’s performance and reliability.

Apr <var data-var='date'> 8</var>, <var data-var='time'>19:01</var> EDT Resolved - This incident has been resolved. Apr <var data-var='date'> 8</var>, <var data-var='time'>14:07</var> EDT Monitoring - We have been made aware that emails sent from Google Workspace accounts via CloudFilter/SafeSend are failing intermittently. There may also be delays in delivering inbound email due to an issue Google is experiencing. If you have a domain affected by this incident, we recommend temporarily disabling the outbound mail routes for Gmail. You may check the status of Google's incident at https://support.cloud.google.com/portal/system-status?product=WORKSPACE&cssp=true

Unable to send or receive email with Google Workspace intermittently

Mar <var data-var='date'>26</var>, <var data-var='time'>16:14</var> EDT Resolved - An update released at approximately 2:00 PM ET today was designed to improve protection against brand impersonation. It behaved more aggressively than intended, holding and jailing legitimate emails, particularly those with signatures containing social media links. The update was rolled back at approximately 2:50 PM ET. This issue is resolved. Actions taken to remediate after rollback: - Inbound emails delivered to Junk have been reprocessed to ensure appropriate risk and moved to the Inbox. - Released jailed emails; they may still land in Junk if the sender is new or carries a medium risk level. - Outgoing emails that were held have been released. No action needed. Mar <var data-var='date'>26</var>, <var data-var='time'>15:19</var> EDT Update - Emails that were delivered to the Jail due to the aggressive behavior of the update have been released. The emails may still end up in the Junk E-mail folder if the risk level is medium or low from a new sender. Mar <var data-var='date'>26</var>, <var data-var='time'>15:06</var> EDT Monitoring - An update to improve brand-related impersonation attacks was aggressively holding outgoing messages and sending inbound emails to the Junk E-mail folder. The update has been rolled back, and the held outgoing emails have been released. Emails delivered to the Junk E-mail folder must be moved out by users. The aggressive protection was active from approximately 2:00 PM ET to 3:00 PM ET.

Shield aggressively holding messages

Jan <var data-var='date'>23</var>, <var data-var='time'>08:50</var> EST Resolved - This incident has been resolved. Jan <var data-var='date'>22</var>, <var data-var='time'>18:38</var> EST Update - We will continue to monitor the status Microsoft provides at https://status.cloud.microsoft/. It appears Microsoft is making progress in some of their affected zones. Logs shows some emails are beginning to deliver, but without Microsoft's confirmation of a resolution, we expect deferrals to continue. Jan <var data-var='date'>22</var>, <var data-var='time'>17:36</var> EST Update - Microsoft's status has not changed. For more information, please visit https://status.cloud.microsoft/ Jan <var data-var='date'>22</var>, <var data-var='time'>14:51</var> EST Monitoring - Microsoft has announced a service issue affecting Exchange Online in M365. We are seeing email delivery delays to M365 domains with temporary error notifications. We will continue to monitor the Microsoft report. Mailprotector's CloudFilter and Shield services are operational.

Mail delivery delays to Microsoft 365 domains

Jan <var data-var='date'>22</var>, <var data-var='time'>01:00</var> EST Completed - The scheduled maintenance has been completed. Jan <var data-var='date'>21</var>, <var data-var='time'>21:00</var> EST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Jan <var data-var='date'>19</var>, <var data-var='time'>15:40</var> EST Scheduled - We will be performing scheduled maintenance on CloudMail (hosted IMAP email) and XtraMail (continuity webmail) on Wednesday, January 21, 2026, at 9:00 PM ET. This update includes essential database updates and may result in a brief login interruption. Maintenance Window: 4 hours Expected Impact: Logging into CloudMail or XtraMail accounts may intermittently fail. Mail flow will not be interrupted. Important Note: Logging in via webmail or an email client will be affected. Thank you for your understanding as we work to maintain CloudMail and XtraMail performance and reliability.

Scheduled Maintenance for CloudMail and XtraMail

Dec <var data-var='date'>18</var>, <var data-var='time'>18:08</var> EST Resolved - The log ingestion issue is resolved, and logs have been backfilled. Dec <var data-var='date'>18</var>, <var data-var='time'>17:06</var> EST Identified - The team has identified an issue with email log ingestion and backend storage. A fix is being prepared. Logs will get backfilled once the issue is resolved. The log issue does not impact mail flow. Email delivery is performing as expected.

Mail log ingestion issue on CloudFilter

Dec <var data-var='date'>12</var>, <var data-var='time'>12:48</var> EST Resolved - The fix has been deployed. New emails are being placed in the appropriate location as expected per X-ray log details. Emails that were not moved prior to the fix will remain in their current location. Moving the message will create an opportunity for Shield to act on the message, if needed. Dec <var data-var='date'>12</var>, <var data-var='time'>11:21</var> EST Identified - An issue with API notifications from Microsoft was discovered, and a fix is already being deployed. Mail flow has not been interrupted; however, the movement of emails to a folder based on sender preferences or risk level without mailbox rules was impacted. The fix is being deployed.

API notifications with Microsoft interrupted

Dec <var data-var='date'>10</var>, <var data-var='time'>01:30</var> EST Completed - The scheduled maintenance has been completed. Dec <var data-var='date'> 9</var>, <var data-var='time'>21:30</var> EST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov <var data-var='date'>13</var>, <var data-var='time'>13:00</var> EST Scheduled - We will be performing scheduled maintenance on the Console email log infrastructure on Tuesday, December 9, 2025, at 9:30 PM ET. This update includes email logging updates and will result in intermittent log view availability in the Console. Maintenance Window: 4 hours Expected Impact: Email logs will be intermittently unavailable during the maintenance. Mail flow should remain unaffected. Important Note: Log access will be temporarily suspended — no logs are expected to be lost. Thank you for your understanding as we work to enhance the Console and CloudFilter's log performance and reliability.

Scheduled Maintenance for Console Logs

Nov <var data-var='date'>22</var>, <var data-var='time'>08:00</var> EST Completed - The scheduled maintenance has been completed. Nov <var data-var='date'>22</var>, <var data-var='time'>04:00</var> EST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov <var data-var='date'> 8</var>, <var data-var='time'>12:21</var> EST Scheduled - We will be performing scheduled maintenance on Shield on Saturday, November 22, 2025, at 4:00 AM ET. This update includes essential database and platform improvements and may result in a brief pause in mail flow. Maintenance Window: 4 hours Expected Impact: Mail flow may be interrupted for up to 15 minutes during the window. Important Note: This will only cause a temporary delivery delay — no emails will be lost. Thank you for your understanding as we work to enhance Shield’s performance and reliability.

Nov <var data-var='date'> 8</var>, <var data-var='time'>08:00</var> EST Completed - The scheduled maintenance has been completed. Nov <var data-var='date'> 8</var>, <var data-var='time'>04:00</var> EST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Oct <var data-var='date'>17</var>, <var data-var='time'>17:03</var> EDT Scheduled - We will be performing scheduled maintenance on Shield on Saturday, November 8, 2025, at 4:00 AM ET. This update includes essential database improvements. Mail flow is not expected to be impacted. Maintenance Window: 4 hours Expected Impact: Mail flow will not be interrupted during the window. Thank you for your understanding as we work to enhance Shield’s performance and reliability.

Oct <var data-var='date'>29</var>, <var data-var='time'>17:53</var> EDT Resolved - This incident has been resolved. Oct <var data-var='date'>29</var>, <var data-var='time'>09:50</var> EDT Monitoring - Radar is operating as expected. However, AWS has not confirmed that the affected service has been fully resolved. We will continue to monitor the situation. Oct <var data-var='date'>28</var>, <var data-var='time'>19:25</var> EDT Update - We are continuing to monitor the situation. AWS is continuing to investigate the issue. Oct <var data-var='date'>28</var>, <var data-var='time'>17:09</var> EDT Identified - An underlying issue at AWS is preventing an essential Radar task from completing. Radar will not complete the round-trip test and return results. We continue to monitor AWS's investigation into the failed service.

Radar tests failng to complete

Oct <var data-var='date'>27</var>, <var data-var='time'>14:01</var> EDT Resolved - This incident has been resolved. Oct <var data-var='date'>27</var>, <var data-var='time'>10:47</var> EDT Monitoring - Connections to CloudMail are operating as expected. We will continue to monitor the status. Oct <var data-var='date'>27</var>, <var data-var='time'>10:08</var> EDT Investigating - We are investigating errors connecting to CloudMail via webmail and email clients.

CloudMail client connections timing out

Oct <var data-var='date'>20</var>, <var data-var='time'>19:09</var> EDT Resolved - Quarantine queues are continuing recovery and services appear to be operating as expected. We will monitor the AWS status through the morning. Oct <var data-var='date'>20</var>, <var data-var='time'>17:19</var> EDT Monitoring - Quarantine services are beginning to recover. We continue to monitor the progress reported by AWS and the recovery of queues and services affected by the outage. Oct <var data-var='date'>20</var>, <var data-var='time'>16:26</var> EDT Update - The Mailprotector Console is back online. Quarantined emails continue to be queued and "good" emails are delivering to recipient servers. Oct <var data-var='date'>20</var>, <var data-var='time'>16:13</var> EDT Update - The Mailprotector Console is currently unavailable due to the AWS issues. Mail flow for good emails continues to operate as expected. To reiterate, good emails are being delivered to recipient servers. The Console and quarantine are currently affected. Oct <var data-var='date'>20</var>, <var data-var='time'>14:18</var> EDT Update - AWS has reported progress but quarantine performance effects remain. We are continuing to monitor and work with AWS. Oct <var data-var='date'>20</var>, <var data-var='time'>11:53</var> EDT Identified - AWS is experiencing service issues that are impacting CloudFilter's quarantine. Emails destinated for the quarantine are queued. Emails passing filtering are being delivered to the destination recipients. Only quarantined emails are affected. You can follow the AWS updates at https://health.aws.amazon.com/health/status

Quarantined emails queued due to AWS issue

Oct <var data-var='date'> 3</var>, <var data-var='time'>15:06</var> EDT Resolved - This incident has been resolved. Oct <var data-var='date'> 1</var>, <var data-var='time'>05:14</var> EDT Monitoring - A server service was unstable. The team has resolved the issue. Webmail and IMAP access is working as expected. We are continuing to monitor the service. Oct <var data-var='date'> 1</var>, <var data-var='time'>04:14</var> EDT Investigating - We are currently investigating the issue. Email is being accepted in mailboxes; however, access via webmail and IMAP is interrupted.

Access to CloudMail mailboxes interrupted

Sep <var data-var='date'>23</var>, <var data-var='time'>01:00</var> EDT Completed - The scheduled maintenance has been completed. Sep <var data-var='date'>22</var>, <var data-var='time'>21:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Sep <var data-var='date'>22</var>, <var data-var='time'>15:32</var> EDT Scheduled - The webmail interface for CloudMail and XtraMail will be upgraded tonight. The upgrade is to comply with database updates required by AWS. Please note that the webmail interface will look different after the upgrade. The two interfaces being upgraded are https://webmail.cloudmail.email and https://webmail.xtramail.email.

CloudMail and XtraMail web mail interface upgrade

Sep <var data-var='date'>10</var>, <var data-var='time'>10:21</var> EDT Resolved - Inbound delivery has continued to perform as expected. This incident is resolved. Sep <var data-var='date'> 9</var>, <var data-var='time'>15:18</var> EDT Monitoring - Inbound delivery is performing as expected. We are continuing to monitor the flow. Sep <var data-var='date'> 9</var>, <var data-var='time'>14:29</var> EDT Investigating - We are investigating an inbound delivery delay. Delays of approximately 20 minutes have been observed.

Inbound email delivery delay

Sep <var data-var='date'>10</var>, <var data-var='time'>06:00</var> EDT Resolved - A permissions change caused the Mailprotector Console to lose connection to a status database. The result was a false report of mail flow errors in the Console and email notifications to admin accounts configured for the alerts. The permissions have been corrected, and the mail flow status in the Console for CloudFilter shows accurate information. There was no mail flow interruption.

False mail flow error in Console

Sep <var data-var='date'> 3</var>, <var data-var='time'>15:18</var> EDT Resolved - A modification to handling ARC seal authentication was deployed late yesterday evening to handle an outlier situation observed over the past few months. The modification created a mail loop in specific messages that were missing some ARC seal authentication information in the headers. This specific situation caused the emails to look up the MX record for delivery, and those domains with a Shield MX record caused the email to loop. A fix for this situation was deployed shortly after the mail loop was detected. The fix now accounts for the rare circumstances involving the ARC seal and will gracefully handle mail delivery.

Intermittent mail loop bounces

Aug <var data-var='date'>29</var>, <var data-var='time'>14:47</var> EDT Resolved - User sync errors affecting Google Workspace customers have been resolved. If an error still exists for a domain, please delete and recreate the user sync in the Mailprotector Console or open a request with the support team for guidance. Aug <var data-var='date'> 5</var>, <var data-var='time'>15:30</var> EDT Monitoring - We are continuing to monitor. Aug <var data-var='date'> 5</var>, <var data-var='time'>12:18</var> EDT Investigating - Mailprotector is seeing an increase in User Sync Errors affecting some Google Workspace customers due to a recent Google update. The error occurs when authenticating with Google. The error may be displayed as "Data too long for column". Resolution (required for each affected domain): 1. Delete the User Source under the User Sync tab in your console 2. Add a new User Source and reconnect to Google Workspace Please reach out to support with any additional questions or concerns.

User Sync Errors with Google Workspace

Aug <var data-var='date'>27</var>, <var data-var='time'>09:33</var> EDT Resolved - Email delivery and API activity are operating as expected. Aug <var data-var='date'>26</var>, <var data-var='time'>16:24</var> EDT Monitoring - The team has resolved email delivery performance, and inbound messages have been arriving as expected since about 1:00 PM ET. However, the issue is still monitored as API-related actions (sender training, message moves, etc.) and logs catch up. Please be aware that emails may sit in a folder a little longer than expected, and Spotlight logs may display an incorrect email location while the database catches up on activity. We expect the issue to be resolved entirely this evening. Aug <var data-var='date'>26</var>, <var data-var='time'>12:38</var> EDT Identified - The issue has been isolated, and resources are being reallocated to empty the email delivery queue as quickly as possible. Aug <var data-var='date'>26</var>, <var data-var='time'>11:39</var> EDT Investigating - We are investigating an issue causing email delivery performance.

Email flow performance

Jul <var data-var='date'> 9</var>, <var data-var='time'>02:00</var> EDT Completed - The scheduled maintenance has been completed. Jul <var data-var='date'> 8</var>, <var data-var='time'>21:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Jun <var data-var='date'>24</var>, <var data-var='time'>13:48</var> EDT Scheduled - Required database maintenance is planned for Tuesday, July 8, 2025, beginning at 9:00 p.m. ET. The Mailprotector Console will not be available during the maintenance. Mail flow will NOT be affected. Partners or users attempting to access the Console (via review notification, bookmark, etc.) will be presented with a maintenance notification page. Most importantly, mail flow will not be impacted by the maintenance window.

Planned Database Maintenance

Jun <var data-var='date'>12</var>, <var data-var='time'>10:19</var> EDT Resolved - After several weeks of work with Microsoft, we have seen evidence that Mailprotector's transport IP addresses are recognized as a legitimate relay. Closely monitoring the logs over the last two weeks has shown few bounces. The bounces during the previous two weeks were patterned after specific domains, indicating an actual domain reputation problem that would legitimately result in bounces. The issue is considered resolved. May <var data-var='date'>30</var>, <var data-var='time'>13:19</var> EDT Monitoring - Bounces for "Banned Sending IP" and "Blocked using Spamhaus" have been all but absent for the last seven days. Confirmation of resolution has not been received from Microsoft, but the current status of deliverability and information from Microsoft gives us reasonable confidence that this issue is on a path to resolution. We will continue monitoring email deliverability for this incident. As a reminder, if there is a recurrence, Microsoft recommends that the sender follow the delisting instructions in the NDR (bounce notification) and resend the email. May <var data-var='date'> 9</var>, <var data-var='time'>12:39</var> EDT Identified - Mailprotector has noticed an increase in the amount of emails with a “Banned Sending IP” bounce from M365 within the last 12 hours. This previously was resolved on May 1st, but the issue has returned. This is still occurring in very small volumes, but we understand any bounce from the system is a disruption in business function. Due to this, we have reopened our case with Microsoft and are attempting to re-engage them. We would recommend having the sender send the email again since it will go through the second time. It is important to note that this is not an outbound reputation issue. Microsoft recommends that the sender follow the delisting instructions in the NDR (bounce notification) and resend the email. Mailprotector is attempting to work the problem with Microsoft to resolve the issue permanently.

Intermittent bounced emails inbound to M365 domains

Jun <var data-var='date'> 5</var>, <var data-var='time'>00:00</var> EDT Completed - The scheduled maintenance has been completed. Jun <var data-var='date'> 4</var>, <var data-var='time'>22:00</var> EDT In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. May <var data-var='date'>30</var>, <var data-var='time'>13:10</var> EDT Scheduled - Database maintenance for the Bracket encryption product will be done on May 28, 2025, starting at 10:00 PM ET and concluding by midnight ET. The Bracket portal will be unavailable during the maintenance window. Encrypted emails will be queued, and users should expect delays in receiving notifications and sign-in links. Email flow will be unaffected otherwise.

Is Mailprotector down?

Mailprotector status is UP

Lastest published events

Scheduled Maintenance for Shield

Virus scans in CloudFilter were unable to complete

Scheduled Maintenance for Shield

Mailprotector Services, Components and Regions

Recent Mailprotector events

Scheduled Maintenance for Shield

Virus scans in CloudFilter were unable to complete

Scheduled Maintenance for Shield

Unable to send or receive email with Google Workspace intermittently

Shield aggressively holding messages

Mail delivery delays to Microsoft 365 domains

Get your FREE account now,
5 monitors included!

Is Mailprotector down?

Mailprotector status is UP

Lastest published events

Scheduled Maintenance for Shield

Virus scans in CloudFilter were unable to complete

Scheduled Maintenance for Shield

Mailprotector Services, Components and Regions

Recent Mailprotector events

Scheduled Maintenance for Shield

Virus scans in CloudFilter were unable to complete

Scheduled Maintenance for Shield

Unable to send or receive email with Google Workspace intermittently

Shield aggressively holding messages

Mail delivery delays to Microsoft 365 domains

Get your FREE account now,5 monitors included!

Get your FREE account now,
5 monitors included!