The short answer: omnisend is reliable overall but not incident-free: StatusBird's independent monitoring recorded 100.0% availability with 2 major incidents totaling 4 minutes of downtime in the last 90 days.
Below is the data behind that answer and how Omnisend compares to its peers.
What is Omnisend?
Omnisend is an email and SMS marketing platform built for e-commerce, with deep Shopify, BigCommerce, and WooCommerce integrations. Stores use it for newsletter campaigns, automated flows like abandoned cart, welcome, and post-purchase series, plus signup popups and audience segmentation based on store purchase data. It syncs contacts, orders, and product data directly from the store.
Omnisend uptime and outage history
| Metric (90 days, as of July 2026) | Value |
|---|---|
| Availability | 100.0% |
| Reliability grade | A+ |
| Major incidents | 2 |
| Total major-outage downtime | 4 minutes |
| Average incident duration | 2 minutes |
| Most recent major incident | April 30, 2026 |
| Checks in window | 61,473 |
Among the 10 email and SMS marketing services StatusBird monitors, Omnisend ranks number 6 for 90-day availability. See the full ranking of email and SMS marketing tools by reliability.
What happens to your store when Omnisend goes down?
When Omnisend goes down, scheduled campaigns may not send and automation flows stall, so abandoned cart emails and texts that normally recover revenue quietly stop firing. Signup popups and embedded forms served by Omnisend scripts can fail to appear, so list growth pauses. Order and contact syncing from the store can also fall behind, which means segments and triggers work from stale data once sending resumes. Your storefront and checkout are unaffected.
Typical symptoms during a Omnisend outage:
- The Omnisend dashboard is unreachable or shows loading errors
- A scheduled campaign shows as stuck in sending or never leaves draft
- Abandoned cart and welcome flow sends stop appearing in reports
- Signup popups and forms stop rendering on the storefront
- New store orders and contacts stop syncing into Omnisend
If you are in the middle of an incident right now, see what to do when Omnisend goes down for a step-by-step playbook.
Frequently asked questions
My abandoned cart emails stopped sending. Am I losing that revenue permanently?
Partially. Carts abandoned during the outage may miss their trigger window, and Omnisend does not always retroactively fire missed automation sends. Once service resumes, consider a one-off campaign to recent non-purchasers to recapture some of that revenue.
I scheduled a big promo email and Omnisend went down. Will it send twice when it recovers?
Usually queued campaigns send once after recovery, but duplicates can happen if you manually retried the send. Do not re-click send during the outage; instead wait for the status page to clear, then check the campaign's sent count against your list size before taking further action.
How this data is measured
StatusBird checks Omnisend'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 Omnisend reliability page and current status on the Omnisend status page, or browse all 84 service grades.
Know before your customers do
StatusBird monitors Omnisend 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.