Is Mailosaur Down? Check current status

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

Current Mailosaur status

Mailosaur is working normally

Updated from Mailosaur official status page a few minutes ago

Having problems with Mailosaur?

Mailosaur service health. Issues reported in the last 24 hours

Working Normally
Possible Incident
Confirmed Outage

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 Mailosaur status data.

Mailosaur Outage Map

View Mailosaur Outage Reports Map

Recent Mailosaur Outages and Downtime History

IsDown has tracked 27 incidents since started monitoring Mailosaur status in January 2023. We collect data from 4522+ services, and normalize the data to give you a clear picture of the impact of the outage.

Date Incident Duration
Aug 11, 2025
06:10 AM EDT
Minor
Some customers unable to forward emails
We're aware of an issue affecting some customers who are attempting to send emails to external ad...
43 minutes
Jun 12, 2025
02:55 PM EDT
Major
Investigating issues with authentication and API services
We are experiencing issues with authentication and core services related to an upstream issue wit...
about 1 hour
Mar 12, 2024
11:50 AM EDT
Minor
Mailosaur UI is experiencing degraded performance
We are aware of an issue, related to our support chat functionality, which is causing the Mailosa...
about 1 hour
Feb 06, 2024
10:01 AM EST
Minor
Intermittent connectivity issues for SMTP and POP3
We are aware of an issue impacting come clients connecting via SMTP and POP3. This is being activ...
about 4 hours
Jan 11, 2024
10:19 AM EST
Minor
SMS messages not being delivered to some numbers
We are aware that some customers are not receiving SMS messages to their Mailosaur phone numbers....
about 6 hours
Jun 08, 2023
03:41 PM EDT
Minor
Degraded performance on US phone numbers
We have received reports that some customers are facing degraded performance of inbound SMS funct...
about 4 hours
May 11, 2023
12:59 PM EDT
Minor
Issue with anti-virus scanning of attachments
We're currently investigating an issue affecting some customers who are trying to access attachme...
19 minutes
Oct 03, 2022
02:46 AM EDT
Minor
Degraded performance
Some customers are finding services are unavailable to them. We are investigating this issue at t...
Ongoing
Aug 21, 2022
08:44 AM EDT
Minor
Service interruption for some customers
We became aware of an issue that was affecting some customers today, which meant we had to restar...
Ongoing
Aug 18, 2022
01:30 PM EDT
Minor
Services interrupted
We had a temporary internal connection issue which caused our service to temporarily go offline f...
Ongoing
Sign up to check more outage history
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User comments about problems with Mailosaur

No comments yet

Mailosaur status page - All services & components

Component Status
Website OK
App OK
API OK
SMTP OK
POP3 OK

Mailosaur Related Services & Alternatives

Services commonly monitored together with Mailosaur and alternatives

GitHub

GitHub

OK
0 incidents in the last 30 days
Slack

Slack

OK
0 incidents in the last 30 days
Google Workspace

Google Workspace

OK
0 incidents in the last 30 days
Sentry

Sentry

OK
0 incidents in the last 30 days
Microsoft Azure

Microsoft Azure

OK
0 incidents in the last 30 days
Microsoft Office 365

Microsoft Office 365

OK
0 incidents in the last 30 days
Status Hero

Status Hero

OK
0 incidents in the last 30 days
Better Stack

Better Stack

OK
0 incidents in the last 30 days
SonarQube

SonarQube

OK
0 incidents in the last 30 days
Snyk

Snyk

OK
0 incidents in the last 30 days
1Password

1Password

OK
0 incidents in the last 30 days
Auth0

Auth0

OK
0 incidents in the last 30 days
Sonatype

Sonatype

OK
0 incidents in the last 30 days
Wix

Wix

OK
0 incidents in the last 30 days
Pantheon

Pantheon

MAINTENANCE
0 incidents in the last 30 days
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Mike S., Head of Security

Email testing service that supports multiple SMTP and POP3 configurations and provides an API for integration and automation.

Monitoring Mailosaur since January 2023

Tracking 13 Mailosaur services and regions

Need help? Try here:
Reach out in social media at X account.
Support at official website.
Check their official status page.

2 incidents in 2025

Frequently Asked Questions

Is Mailosaur down today?

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

What is the current Mailosaur status?

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

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

How are Mailosaur outages detected?

IsDown monitors the Mailosaur 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 Mailosaur having an outage right now?

Mailosaur last outage was on August 11, 2025 with the title "Some customers unable to forward emails"

How to check if Mailosaur is down?

Why use IsDown to monitor Mailosaur 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 Mailosaur 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 Mailosaur?

IsDown and DownDetector help users determine if Mailosaur 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 Mailosaur'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.

How IsDown works?

  1. IsDown monitors official status pages

    We check the status of the services you're monitoring every few minutes. We aggregate the status and outage information and normalize it. We also collect crowdsourced information to provide early warning signs.

  2. We notify you when there is an outage

    We send you an alert whenever we detect a new incident or an update on the status of the services you're monitoring. You can customize the alerts to your needs to avoid alert fatigue.

  3. Dedicated dashboard and integrations

    Aggregate all the status information in a straightforward dashboard or internal status page. You can also send the information and alerts to your team's communication/monitoring/incident management tools, such as Slack, Datadog, Microsoft Teams, PagerDuty, and more.

Want to be informed about Mailosaur status changes?

IsDown offers an easy way to monitor Mailosaur with maximum flexibility

Major Outages Notifications

IsDown monitors Mailosaur for major outages. A major outage is when Mailosaur experiences a critical issue that severely affects one or more services/regions. When Mailosaur 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.

Minor Outages Notifications

IsDown monitors Mailosaur status page for minor outages. A minor outage is when Mailosaur 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.

Outage Details

IsDown collects all information from the outages published in Mailosaur 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.

Maintenance Feed

Mailosaur publishes scheduled maintenance events on their status page. IsDown collects all the information for each event and creates a feed that people can follow to ensure they are not surprised by unexpected downtime or problems. We also send the feed in our weekly report, alerting the next maintenances that will take place.

Component Filtering

IsDown monitors Mailosaur and all their 13 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.

Early Outage Detection

Mailosaur 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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