Is Mimecast Down? Check current status

Check if Mimecast is down, official outages, user-reported issues, and outages map.

Current Mimecast status

Mimecast is working normally

Updated from Mimecast official status page

Mimecast not working for you?

Mimecast service health. Issues reported in the last 24 hours

Check 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.

Working Normally
Possible Incident
Confirmed Outage
Mimecast Outage Map

View Mimecast Reports Map

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Mimecast recent outages and downtime history

IsDown has tracked 118 incidents since started monitoring Mimecast status in March 2022. We collect data from 4522+ services, and normalize the data to give you a clear picture of the impact of the outage. It will show official Mimecast outages and also issues that we're started by a spike in crowdsource reports.

Date Incident Duration
Oct 20, 2025
06:28 AM EDT
Minor
Mimecast issues due to AWS service disruption
Mimecast is aware of an issue impacting customers who use Mimecast Services integrated with Ama...
about 18 hours
Oct 08, 2025
08:39 AM EDT
Minor
Mimecast web portal access issue
We are aware that customers may be experiencing issues accessing the Mimecast web portals. We a...
about 1 hour
Oct 05, 2025
11:34 PM EDT
Minor
Intermittent Phone System Identification & Call Routing
We are currently experiencing an intermittent issue with our customer support phone system, where...
about 13 hours
Sep 20, 2025
01:32 PM EDT
Minor
Mimecast Security Agent Disruption
Mimecast is aware of a service disruption impacting our Mimecast Security Agent (MSA). The agen...
about 3 hours
Sep 19, 2025
05:50 PM EDT
Minor
Degraded Service on US Grid
We are aware that some customers housed on our US grid may be experiencing intermittent timeout...
1 day
Aug 19, 2025
06:16 PM EDT
Minor
Degraded Cloud Integrated Service
We are aware that some customers hosted on our US grid may be experiencing a degraded service w...
about 2 hours
Aug 19, 2025
10:00 AM EDT
Minor
Administration Console Inaccessible
We are aware that customers may be experiencing issues accessing the Administration Console. We...
36 minutes
Jul 26, 2025
08:36 PM EDT
Minor
Intermittent delivery delays on DE grid
We are aware that some customers hosted on our DE grid may be experiencing intermittent delivery ...
about 6 hours
Jul 25, 2025
11:18 PM EDT
Minor
Intermittent delivery delays on DE grid
We are aware that some customers hosted on our DE grid may be experiencing intermittent delivery ...
about 1 hour
Jul 25, 2025
03:11 AM EDT
Minor
South Africa (ZA) grid degraded performance
We can confirm that email processing and accessibility to the administration console have been re...
about 2 hours
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Looking to track Mimecast outages?

  • Monitor external dependencies in one status page
  • Track status changes in real-time
  • Keep your team or customers informed
  • Create private or public status pages

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User comments about Mimecast status

See what users are saying about Mimecast issues that impacted them and how they are affected by the outage. You can see if other users are experiencing the same issues and if there are any workarounds or solutions.

  • Tracy - Mails being received but sent mails not going through.

    South African Grid

  • Christo - Airlink (Pty) Ltd Mimecast mail not sending and receiving and we can't log into the Mimecast portal Please advise?.

  • 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.

    South African Grid

  • Roderick - Emails are not sending and receiving..

    South African Grid

  • Conor - SMS service not sending out 2FA texts.

  • Vasile - 2FA SMS messages not received on a UK mobile number.

    United Kingdom Grid

Users who monitor Mimecast status also monitor these services

Users are monitoring tens of services with IsDown. Here are some that are monitored together with Mimecast. With IsDown you can get a bird's eye view of all your dependencies and how they are performing.

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Zoom

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MAINTENANCE
Microsoft Office 365

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OK
Adobe

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MINOR
Salesforce

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MINOR
GitHub

GitHub

OK
Okta

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Google Workspace

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OK
Google Cloud

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Confluence

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Jira Software

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DocuSign

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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

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38 incidents in 2025

How to monitor the status of Mimecast and all your dependencies?

IsDown is a status page aggregator that monitors if Mimecast and all your dependencies are experiencing issues. We combine the status of all the services you dependent and provide a clear view of all your vendors health in one place. We not only monitor official information but also crowdsourced reports. That means that even when Mimecast, per example, doesn't report an outage, you will still be notified if other users are experiencing issues.

How IsDown monitors Mimecast?

IsDown monitors Mimecast health in almost real-time

Every few minutes we go to the status page of Mimecast (and 4,522+ other services) and check if they are experiencing issues. We collect the status and outage information of Mimecast's 9 components. Also, we not only monitor official sources but also user reports. Sometimes or a lot of times vendors take some time to report an incident, so by monitoring user reports we're able to alert you early.

The moment an issue is detected in Mimecast, IsDown sends an alert and updates your status page

Not only you will get notified, but IsDown offers notification filters, so you can choose which issues you want to be notified about. This way you avoid getting all the incidents from Mimecast and other services.

What you get when monitoring Mimecast with IsDown

Track Mimecast incidents and downtimes by severity

IsDown checks Mimecast official status page for major/minor outages or downtimes. A major outage is when Mimecast experiences a critical issue that severely affects one or more services/regions. A minor incident 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. The moment we detect a Mimecast outage, we send you an alert and update your dashboard and status page.

Get alerted as soon as users reports problems with Mimecast

Mimecast and other vendors don't always report outages on time. IsDown collects user reports to provide early detection of outages. This way, even without an official status update, you can stay ahead of possible problems.

All the details of Mimecast outages and downtimes

IsDown collects all information from the outages published in Mimecast status page to provide the context of the outage. 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.

Only get alerted on the Mimecast outages 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.

One platform to monitor all your external dependencies

Our tool was build to be the best way to monitor all your external dependencies in one place. IsDown not only will help you monitor Mimecast but also 4,522 other services. Your team and customers will have a clear view of all your dependencies and their status, making it easier to identify and resolve issues.

Monitor Mimecast and all your external dependencies in real-time

Add all your dependencies to your dashboard. IsDown will monitor them in real-time and send you alerts when there is an issue. You can also create a status page for a bird-eye view and share it with your team.

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Get notified imediatelly when there's an issue with Mimecast or other services

Not only you will get notified, but IsDown offers notification filters, so you can choose which issues you want to be notified about. This way you avoid getting all the incidents from Mimecast and other services.

Start Monitoring for Free

Send outage information from Mimecast and other services to your tools

IsDown integrates with 20+ tools. Connect the status of Mimecast and 4,522 other vendors to your tools to receive vendor outage alerts exactly where your team needs them.

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Share Mimecast status in your status page

Create a status page that can easily be access by your team and customers. You can make it public or private, and customize it to your needs. This will be your first line of communication when there's the question 'Is Mimecast down?'

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Mimecast Downdetector vs IsDown

While Downdetector relies on user-submitted reports to detect Mimecast outages, IsDown monitors Mimecast's status page for verified, detailed incident information. Here's why official monitoring provides better reliability for your business:

Features
Downdetector
Official Mimecast status page monitoring with real-time incident details.
Monitor 4,522+ services including Mimecast in a single dashboard.
Instant Mimecast outage alerts sent to Slack, Teams, PagerDuty, and more.
Combined monitoring of Mimecast official status and user-reported issues.
Maintenance feed for Mimecast
Granular alerts filtering by Mimecast components and regions.
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Frequently Asked Questions

Is Mimecast down today?

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.

What is the current Mimecast status?

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.

Is there a Mimecast outage now?

No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.

Is Mimecast down today or just slow?

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.

How are Mimecast outages detected?

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.

Is Mimecast having an outage right now?

Mimecast last outage was on October 20, 2025 with the title "Mimecast issues due to AWS service disruption"

How to check if Mimecast is down?

Why use IsDown to monitor Mimecast instead of the official status page?

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.

How IsDown compares to DownDetector when monitoring Mimecast?

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.

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