Is Customer.io Message Sending Down?
Customer.io status updated
What is Customer.io Message Sending status right now?
Customer.io Message Sending is working normally
IsDown last checked Customer.io Message Sending status on at . We've received 0 user reports in the past 24 hours.
Monitoring since Apr 2020
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55 incidents caught
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15 components tracked in real-time
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Customer.io Message Sending service health over the last 24 hours
This chart shows the number of user-reported issues for Customer.io Message Sending service health 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.
Message Sending Outage Map
See where users report Customer.io Message Sending is down. The map shows recent Customer.io Message Sending outages from around the world.
Message Sending Outage Map
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Monitor Customer.io Message Sending status and outages
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Customer.io Downtime Health — Last 90 Days
In the last 90 days, Customer.io had 4 incidents with a median duration of 35 minutes.
4
Incidents
0
Major Outages
4
Minor Incidents
35
minute
Median Resolution
Recent Customer.io Message Sending outages detected by IsDown
Full incident reports for recent Customer.io Message Sending outages, including timelines, affected components, and resolution details.
about 1 hour
Nov 04, 2025 at 12:46 PM
about 5 hours
Oct 30, 2025 at 10:25 AM
| Title | Started At | Duration |
|---|---|---|
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Our engineers are looking into an issue that may be causing some customers in the EU to experienc...
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Feb 19, 2026 at 02:35 PM UTC
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9 minutes |
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Our engineers are currently investigating an issue where message sending is delayed. We thank you...
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Jan 28, 2026 at 06:56 PM UTC
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33 minutes |
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We identified a recent change that might cause data delays. We are investigating.
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Dec 08, 2025 at 06:12 PM UTC
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about 2 hours |
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Our team is aware of an issue with Campaign deliveries and Transactional emails going out. We are...
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Nov 24, 2025 at 08:15 AM UTC
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37 minutes |
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We are currently investigating this issue.
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Nov 04, 2025 at 08:46 PM UTC
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about 1 hour |
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Some US customers will experience errors in the UI and delays in data processing and sending. We...
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Oct 30, 2025 at 05:25 PM UTC
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about 5 hours |
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We are currently investigating an issue where some customer may see delays in data processing and...
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Oct 29, 2025 at 08:02 PM UTC
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11 minutes |
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We are currently investigating this issue. You may see delays in data processing and message send...
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Oct 23, 2025 at 09:26 PM UTC
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about 2 hours |
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We are experiencing intermittent errors with our upstream provider for Twilio templates. Custome...
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Oct 20, 2025 at 06:45 PM UTC
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about 3 hours |
|
We have identified an issue that may cause some customers with accounts in the US to experience d...
|
Sep 30, 2025 at 09:10 PM UTC
|
12 minutes |
Get alerts when Customer.io Message Sending is down
- Monitor all your external dependencies in one place
- Get instant alerts when outages are detected
- Be the first to know if service is down
- Show real-time status on private or public status page
- Keep your team informed
Frequently Asked Questions
Is Customer.io Message Sending down today?
Customer.io Message Sending isn't down. You can check Customer.io Message Sending status and incident details on the top of the page. IsDown continuously monitors Customer.io Message Sending official status page every few minutes. In the last 24 hours, there were 1 outages reported.
What is the current Customer.io Message Sending status?
Customer.io Message Sending is currently operational. You can check Customer.io Message Sending 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 Customer.io Message Sending 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 Customer.io Message Sending down today or just slow?
Currently there's no report of Customer.io Message Sending being slow. Check on the top of the page if there are any reported problems by other users.
How are Customer.io Message Sending outages detected?
IsDown monitors the Customer.io Message Sending 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 Customer.io Message Sending having an outage right now?
Customer.io Message Sending last outage was on February 19, 2026 with the title "Some customers in our EU region may experience errors and delays"
How often does Customer.io Message Sending go down?
IsDown has tracked 55 Customer.io Message Sending incidents since April 2020. When Customer.io Message Sending goes down, incidents typically resolve within 51 minutes.
Is Customer.io Message Sending down for everyone or just me?
Check the Customer.io Message Sending status at the top of this page. IsDown combines official status page data with user reports to show whether Customer.io Message Sending is down for everyone or if the issue is on your end.
How IsDown compares to DownDetector when monitoring Customer.io?
IsDown and DownDetector help users determine if Customer.io 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 Customer.io'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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