The short answer: mailchimp has been highly reliable recently: StatusBird's independent monitoring recorded 100.0% availability and zero major incidents over the last 90 days.
Below is the data behind that answer and how Mailchimp compares to its peers.
What is Mailchimp?
Mailchimp is an email marketing platform owned by Intuit, offering campaign sends, automations and customer journeys, signup forms and landing pages, and audience management. Online stores connect it to their platform to sync customers and orders, send newsletters and promotions, and run automations like abandoned cart and win-back emails.
Mailchimp uptime and outage history
| Metric (90 days, as of July 2026) | Value |
|---|---|
| Availability | 100.0% |
| Reliability grade | A+ |
| Major incidents | 0 |
| Total major-outage downtime | 0 minutes |
| Average incident duration | n/a |
| Most recent major incident | None in the last 90 days |
| Checks in window | 43,603 |
Among the 10 email and SMS marketing services StatusBird monitors, Mailchimp ranks number 5 for 90-day availability. See the full ranking of email and SMS marketing tools by reliability.
What happens to your store when Mailchimp goes down?
During a Mailchimp outage, scheduled campaigns may not send and automations like abandoned cart journeys stop firing, pausing the revenue those emails normally drive. The dashboard can be unreachable, so you cannot build, edit, or check on sends mid-promotion. Mailchimp-hosted signup forms and landing pages may fail to load, halting list growth, and store integrations stop syncing new customers and orders, which delays automation triggers even after recovery.
Typical symptoms during a Mailchimp outage:
- Mailchimp dashboard not loading or logins failing
- Scheduled campaign stuck or showing no delivery activity
- Automation and journey emails not arriving
- Embedded signup forms or Mailchimp landing pages not loading
- Store integration showing sync errors or stale audience data
If you are in the middle of an incident right now, see what to do when Mailchimp goes down for a step-by-step playbook.
Frequently asked questions
My promotion email was scheduled during the Mailchimp outage. Do I need to resend it?
Check first. Queued campaigns often send late once the outage clears, and resending blindly risks double emails to your entire list. Look at the campaign's delivery report after recovery; only resend, and only to unsent recipients, if delivery clearly failed.
Will my abandoned cart automation catch the carts abandoned during the outage?
Often yes with delay, since the store sync backfills events and journeys process them late. But it is not guaranteed for every event, so review automation activity for the outage window and consider a manual send to any high-value abandoned carts that slipped through.
How this data is measured
StatusBird checks Mailchimp's status every 2 minutes, around the clock, independently of the vendor. The availability figure counts major and critical outages only; minor degradation is excluded so numbers are not skewed by vendors that report small blips near-continuously. Grades run from A+ to F. See the live numbers on the Mailchimp reliability page and current status on the Mailchimp status page, or browse all 84 service grades.
Know before your customers do
StatusBird monitors Mailchimp and 83 other services online stores depend on, plus your own storefront, every 2 minutes. When something goes down you get an SMS, email, or Slack alert with plain-English context, usually before the official status page catches up. Start monitoring free, no card required for the free plan.