Check if Mimecast is down, recent outages, user-reported issues, and outages map.
Mimecast is working normally
Stay on top of outages with IsDown. Monitor the real-time status of all your vendors, SaaS, and tools, including Mimecast.
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. Sign up for free to see more Mimecast status data.
IsDown has tracked 115 incidents since started monitoring Mimecast status in March 2022. We collect data from 4484+ services, and normalize the data to give you a clear picture of the impact of the outage.
| Date | Status | Incident | Duration |
|---|---|---|---|
|
Sep 20, 2025
01:32 PM EDT
|
Minor | Mimecast Security Agent Disruption | about 3 hours |
|
Sep 19, 2025
05:50 PM EDT
|
Minor | Degraded Service on US Grid | 1 day |
|
Aug 19, 2025
06:16 PM EDT
|
Minor | Degraded Cloud Integrated Service | about 2 hours |
|
Aug 19, 2025
10:00 AM EDT
|
Minor | Administration Console Inaccessible | 36 minutes |
|
Jul 26, 2025
08:36 PM EDT
|
Minor | Intermittent delivery delays on DE grid | about 6 hours |
|
Jul 25, 2025
11:18 PM EDT
|
Minor | Intermittent delivery delays on DE grid | about 1 hour |
|
Jul 25, 2025
03:11 AM EDT
|
Minor | South Africa (ZA) grid degraded performance | about 2 hours |
|
Jul 22, 2025
11:15 PM EDT
|
Minor | Degraded service for customers with account code CUSA62*** on USGrid | about 1 hour |
|
Jul 08, 2025
04:51 AM EDT
|
Minor | ZA Grid Degraded Mail Flow | about 5 hours |
|
Jun 18, 2025
03:28 PM EDT
|
Minor | Intermittent Login Errors | about 2 hours |
One place to monitor all your cloud vendors. Get instant alerts when an outage is detected.
Mails being received but sent mails not going through
Airlink (Pty) Ltd Mimecast mail not sending and receiving and we can't log into the Mimecast portal Please advise?
We are unable to access Profile Groups in our Mimecast Admin Portal. It appears to be loading then just stops.
Can’t log in not working
Outgoing emails and internal
MS Exchange relay to Mimecast queue is growing.
[za-smtp-outbound-1.mimecast.co.za 41.74.193.202: 421 Server busy, please try again later.] Server rejecting all mails
Emails are not sending and receiving.
SMS service not sending out 2FA texts
2FA SMS messages not received on a UK mobile number
| Component | Status |
|---|---|
| United States Grid | OK |
| United States B Grid | OK |
| United Kingdom Grid | OK |
| South African Grid | OK |
| Australian Grid | OK |
| German Grid | OK |
| Offshore Grid | OK |
| Canadian Grid | OK |
| Points of Contact | OK |
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Quickly access the status of Mimecast and 4484+ services
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Mimecast is a cloud-based email management service for security, archiving, and continuity, tailored to specific regional compliance and data sovereignty requirements.
Monitoring Mimecast since March 2022
Tracking 9 Mimecast services and regions
35 incidents in 2025
Number of Incidents
2 issues
Last incident
13 days ago
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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 September 20, 2025 with the title "Mimecast Security Agent Disruption"
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 Mimecast 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 instead of just relying on reports from users. The integration allows us to provide more details about Mimecast's Outages, 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.
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