Is Tessian US Down? Check current status

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

Current Tessian US status

Tessian US status updated

Tessian US is working normally

Tessian US status was last checked by IsDown on at , and appears to be operational. We've received 0 user reports in the past 24 hours.

Tessian US not working for you?

Tessian US 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
Tessian US Outage Map

View Tessian US Reports Map

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Tessian US recent outages and downtime history

IsDown has tracked 7 incidents since started monitoring Tessian US status in May 2025. We collect data from 4600+ services, and normalize the data to give you a clear picture of the impact of the outage. It will show official Tessian US outages and also issues that we're started by a spike in crowdsource reports.

Date Incident Duration
Dec 02, 2025
10:29 AM EST
Minor
M365 Add-In: Silently failing checks for a subset of users
Impact window: 10:03 UTC - 13:08 UTC December 2nd 2025 Impacted Add-in: Smart Alerts M365 Add-in ...
1 day
Oct 29, 2025
12:28 PM EDT
Minor
M365 Add-in Impacted by Microsoft Library
We are aware of an issue affecting a critical Microsoft-hosted library used by the M365 add-in st...
about 8 hours
Oct 09, 2025
09:45 AM EDT
Minor
M365 Add-in impacted by Microsoft Azure Service Incident
Starting at 07:40 UTC on 09 October 2025, Microsoft experienced a service incident with Azure Fro...
about 4 hours
Sep 02, 2025
04:54 PM EDT
Minor
Delayed Events I&R
Inbound protection experienced degraded performance between 4:00 PM-6:00 PM UTC, with an addition...
1 day
Aug 08, 2025
12:21 PM EDT
Minor
Some Adaptive Email DLP Events slow to show in Security Events
Since late on August 5th, some customers may have had a delay in Security Events showing up in th...
3 days
Jun 26, 2025
12:47 PM EDT
Minor
Intermittent Gateway Delivery Issues — [451 ECONNREFUSED]
A small number of US hosted customers may have experienced delays with email delivery routed thro...
11 days
May 12, 2025
01:00 PM EDT
Minor
Intermittent Gateway Delivery Issues — [451 ECONNREFUSED]
Beginning May 8th, we have observed intermittent issues affecting some customer's message deliver...
about 23 hours
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Be the first to know when Tessian US goes down

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

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User comments about Tessian US status

See what users are saying about Tessian US 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.

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Tessian US components or services current status

Component Status
Integrations OK
Protection OK
Respond OK
Tessian API OK
Tessian Cloud Email Security Platform OK
Tessian Portal OK

Email security platform that uses machine learning to prevent threats, manage risks, and ensure compliance through features like threat response, API integration, and a centralized management portal.

Monitoring Tessian US since May 2025

Tracking 6 Tessian US services and regions

Need help? Try here:
Support at website.
Check their status page.

7 incidents in 2025

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How to monitor the status of Tessian US and all your dependencies?

IsDown is a status page aggregator that monitors if Tessian US 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 Tessian US, per example, doesn't report an outage, you will still be notified if other users are experiencing issues.

How IsDown monitors Tessian US?

IsDown monitors Tessian US health in almost real-time

Every few minutes we go to the status page of Tessian US (and 4,600+ other services) and check if they are experiencing issues. We collect the status and outage information of Tessian US's 6 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 Tessian US, 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 Tessian US and other services.

One status page to monitor all your external dependencies

What you get when monitoring Tessian US with IsDown

Track Tessian US incidents and downtimes by severity

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

Get alerted as soon as users reports problems with Tessian US

Tessian US 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 Tessian US outages and downtimes

IsDown collects all information from the outages published in Tessian US 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 Tessian US outages that impact your business

IsDown monitors Tessian US and all their 6 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 Tessian US but also 4,600 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 Tessian US 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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Monitor Tessian US and all your external dependencies in real-time

Get notified imediatelly when there's an issue with Tessian US 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 Tessian US and other services.

Start Monitoring for Free
Get notified imediatelly when there's an issue with Tessian US or other services

Send outage information from Tessian US and other services to your tools

IsDown integrates with 20+ tools. Connect the status of Tessian US and 4,600 other vendors to your tools to receive vendor outage alerts exactly where your team needs them.

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Send outage information from Tessian US and other services to your tools

Share Tessian US 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 Tessian US down?'

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Share Tessian US status in your status page

Tessian US Downdetector vs IsDown

Need similar to Downdetector Tessian US alerts? IsDown might be the solution for you. While Downdetector relies on user-submitted reports to detect Tessian US outages, IsDown monitors Tessian US's status page for verified, detailed incident information. Here's why official monitoring provides better reliability for your business:

Features
Downdetector
Official Tessian US status page monitoring with real-time incident details.
Monitor 4,600+ services including Tessian US in a single dashboard.
Instant Tessian US outage alerts sent to Slack, Teams, PagerDuty, and more.
Combined monitoring of Tessian US official status and user-reported issues.
Maintenance feed for Tessian US
Granular alerts filtering by Tessian US components and regions.
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Frequently Asked Questions

Is Tessian US down today?

Tessian US isn't down. You can check Tessian US status and incident details on the top of the page. IsDown continuously monitors Tessian US official status page every few minutes. In the last 24 hours, there were 0 outages reported.

What is the current Tessian US status?

Tessian US is currently operational. You can check Tessian US 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 Tessian US 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 Tessian US down today or just slow?

Currently there's no report of Tessian US being slow. Check on the top of the page if there are any reported problems by other users.

How are Tessian US outages detected?

IsDown monitors the Tessian US 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 Tessian US having an outage right now?

Tessian US last outage was on December 02, 2025 with the title "M365 Add-In: Silently failing checks for a subset of users"

How to check if Tessian US is down?

Why use IsDown to monitor Tessian US 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 Tessian US 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 Tessian US?

IsDown and DownDetector help users determine if Tessian US 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 Tessian US'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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