Live Mimecast status. See if Mimecast is down, view recent outages, and get real-time alerts when problems start.
Mimecast is operational
IsDown pulls data from Mimecast's status page every few minutes and collects user-reported issues. Refresh the page to see if there are any updates.
This chart displays the number of user-reported issues over the past 24 hours, grouped into 20-minute intervals. It's normal to see occasional reports, which may be due to individual user issues rather than a broader problem. We only consider an issue widespread if there are multiple reports within a short timeframe.
IsDown has tracked 103 incidents since started monitoring Mimecast status in March 2022. We collect data from 4200+ services, and normalize the data to give you a clear picture of the impact of the outage.
2 days ago · lasted about 2 hours
We are aware that some customers hosted on our UK grid may be experiencing degraded service impacting inbound emails subjected to content examination policies. Emails will be held in the processing queue and continue to retry delivery. We are cu...
5 days ago · lasted about 2 hours
Mimecast is aware of an issue accessing the Mimecast 'My Applications' page, you may experience a "Something went wrong" error. It is still possible to access the Administration Console and Personal Portal via direct links: https://login.mimecas...
10 days ago · lasted about 1 hour
We are aware that a small subset of customers hosted on our AU grid may be experiencing delivery delays when sending to Office 365. We are currently investigating the issue and updates will be posted here as they become available.
We've tracked and collected 103 incidents since started monitoring Mimecast status
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Pam
We are unable to access Profile Groups in our Mimecast Admin Portal. It appears to be loading then just stops.
Em
Can’t log in not working
Eli
Outgoing emails and internal
Gregg
MS Exchange relay to Mimecast queue is growing.
Amourie
[za-smtp-outbound-1.mimecast.co.za 41.74.193.202: 421 Server busy, please try again later.] Server rejecting all mails
Roderick
Emails are not sending and receiving.
Conor
SMS service not sending out 2FA texts
Vasile
2FA SMS messages not received on a UK mobile number
Be the first to know when Mimecast and other third-party services go down
Services commonly monitored together with Mimecast
Mimecast isn't down. You can check Mimecast status and incident details on the top of the page. IsDown continuously monitors Mimecast official status page every few minutes. In the last 24 hours, there were 0 outages reported.
Mimecast is currently operational. You can check Mimecast status and incident details on the top of the page. The status is updated in almost real-time, and you can see the latest outages and issues affecting customers.
No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.
Currently there's no report of Mimecast being slow. Check on the top of the page if there are any reported problems by other users.
IsDown monitors the Mimecast official status page every few minutes. We also get reports from users like you. If there are enough reports about an outage, we'll show it on the top of the page.
Mimecast last outage was on May 30, 2025 with the title "UK External content examination (cex) failed max times - will requeue"
Because IsDown is a status page aggregator, which means that we aggregate the status of multiple cloud services. You can monitor Mimecast and all the services that impact your business. Get a dashboard with the health of all services and status updates. Set up notifications via Slack, Datadog, PagerDuty, and more, when a service you monitor has issues or when maintenances are scheduled.
IsDown and DownDetector help users determine if a service is having problems. The big difference is that IsDown is a status page aggregator. IsDown monitors a service's official status page to give our customers a more reliable source of information. The integration allows us to provide more details about the outage, like incident title, description, updates, and the parts of the affected service. Additionally, users can create internal status pages and set up notifications for all their third-party services.
IsDown offers an easy way to monitor Mimecast with maximum flexibility
IsDown monitors Mimecast for major outages. A major outage is when Mimecast experiences a critical issue that severely affects one or more services/regions. When Mimecast marks an incident as a major outage, IsDown updates its internal status, the customer status page and dashboard. Depending on the customer settings, IsDown will also send notifications.
IsDown monitors Mimecast status page for minor outages. A minor outage is when Mimecast experiences a small issue affecting a small percentage of its customer's applications. An example is the performance degradation of an application. When a minor outage occurs, IsDown updates its internal status and shares that information on the customer status page. Depending on the customer settings, IsDown will also send notifications.
IsDown collects all information from the outages published in Mimecast status page to provide the most accurate information. If available, we gather the title, description, time of the outage, status, and outage updates. Another important piece of information is the affected services/regions which we use to filter the notifications that impact your business.
IsDown monitors Mimecast and all their 9 components that can be affected by an outage. IsDown allows you to filter the notifications and status page alerts based on the components you care about. For example, you can choose which components or regions affect your business and filter out all other outages. This way you avoid alert fatigue in your team.
Mimecast and other vendors don’t always report outages on time. Our crowdsourced status platform helps you stay ahead of outages. Users report issues and outages, sharing details on what problems they are facing. We use that info to provide early signs of outages. This way, even without an official update, you can stay ahead of possible problems.
“Very happy with isDown. Setting up and managing the monitoring is straightforward. The customer support team has been excellent, always quick to answer questions and provide assistance.
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