The short answer: sendGrid 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 SendGrid compares to its peers.
What is SendGrid?
SendGrid, owned by Twilio, is an email delivery platform that sends both transactional email (order confirmations, shipping notifications, password resets) and marketing campaigns via API or SMTP. Many e-commerce stores never touch SendGrid directly but depend on it anyway, because their store platform, apps, helpdesk, or subscription tools use it under the hood to deliver customer email. It handles the sending infrastructure, deliverability, and event webhooks for opens, clicks, and bounces.
SendGrid 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 | 61,614 |
Among the 10 email and SMS marketing services StatusBird monitors, SendGrid ranks number 8 for 90-day availability. See the full ranking of email and SMS marketing tools by reliability.
What happens to your store when SendGrid goes down?
When SendGrid goes down, transactional email silently stops: customers place orders but never receive confirmations, password reset emails never arrive so customers cannot log in, and shipping notifications stall. Depending on the incident, API calls may be rejected outright (mail is never accepted) or accepted but queued with long delivery delays, and those two modes need different responses. Marketing sends scheduled through SendGrid also stall, and event webhooks stop updating your engagement data. The result customers see is a store that appears to have ignored them.
Typical symptoms during a SendGrid outage:
- Customers report missing order confirmations and password reset emails
- SendGrid API calls return errors or time out in application logs
- The SendGrid dashboard activity feed shows no recent processed mail
- Emails show as processed or deferred but never reach inboxes
- Open, click, and bounce webhook events stop arriving
If you are in the middle of an incident right now, see what to do when SendGrid goes down for a step-by-step playbook.
Frequently asked questions
Customers say they never got their order confirmation. Did their orders actually go through?
Almost certainly yes. SendGrid only delivers the email; the order itself was created in your store before the confirmation send was attempted. Check your store's order list to confirm, tell worried customers their order is safe, and resend confirmations once email delivery recovers.
Do I need to resend all the emails from the outage window?
It depends on the failure mode. If SendGrid accepted the messages but delivery was delayed, they will usually flush through on their own and resending causes duplicates. If your API calls were rejected, those emails were never queued and you must replay them from your own logs. The status page and your application error logs together tell you which case you are in.
How this data is measured
StatusBird checks SendGrid'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 SendGrid reliability page and current status on the SendGrid status page, or browse all 84 service grades.
Know before your customers do
StatusBird monitors SendGrid 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.