Is SendGrid Down? How to Check SendGrid Status Right Now

Transactional emails not sending, email deliverability dropping, or the SendGrid dashboard returning errors? Learn how to check if SendGrid is down right now and what to do to protect email delivery during an outage.

SendGrid (now part of Twilio) processes billions of transactional and marketing emails for developers and businesses. When SendGrid goes down, emails stop delivering — password resets, order confirmations, welcome messages, and invoice notifications queue or bounce silently. Here's how to confirm whether SendGrid is down and what to do about it.

Is SendGrid Down Right Now?

Check these in order:

Statusfield — SendGrid status — real-time monitoring of SendGrid's platform health.
SendGrid's official status page — status.sendgrid.com shows active incidents, degradations, and historical uptime by component.
Twitter/X — search sendgrid down or sendgrid email not sending sorted by Latest. Developers notice and report deliverability issues quickly.
Twilio status page — since the Twilio acquisition, some infrastructure is shared; status.twilio.com may show correlated incidents.

SendGrid Components That Can Fail Independently

Component	What breaks when it fails
SMTP Relay	Applications sending via SMTP stop delivering; emails bounce or queue
Web API v3	Applications sending via API get 5xx errors; programmatic email fails
Email Processing	Emails accepted but not processed or queued for sending
Delivery	Emails leave SendGrid but fail to reach destination mail servers
Event Webhooks	Delivery events (delivered, opened, bounced, clicked) stop posting to your endpoint
Activity Feed / Dashboard	Email logs and stats inaccessible in the SendGrid UI
Marketing Campaigns	Scheduled bulk campaigns don't send or send with delays
Link Tracking	Tracked links return errors; click data not recorded
Inbound Email Parse	Incoming emails forwarded to your application stop arriving

Common Errors During a SendGrid Outage

Error	Likely cause
SMTP: `421 Service temporarily unavailable`	SMTP relay degraded; retry with exponential backoff
API: `503 Service Unavailable` on `POST /mail/send`	Web API gateway or email processing degraded
API: `202 Accepted` but email never arrives	Email accepted into queue but delivery pipeline degraded
Event webhooks not arriving	Webhook delivery service degraded
Dashboard shows no activity for recent sends	Activity Feed API degraded
Spike in hard bounces	IP reputation issue or delivery routing problem
`550 5.1.1 User unknown` on valid addresses	Deliverability issue — not an outage, but worth checking simultaneously

The Silent Failure Problem

SendGrid outages can be invisible from the application side. The API may return 202 Accepted — meaning the request was received — while the email silently fails to deliver. This is the most dangerous failure mode because:

No immediate error in your application logs
No user feedback until they complain about not receiving an email
Delayed detection — the failure only becomes apparent hours later when users report missing emails

How to detect silent failures:

Monitor your event webhook — if delivered events stop arriving for a period when send events are high, something is wrong downstream of acceptance
Track delivery rate — alert if the ratio of delivered to processed events drops below a threshold (e.g., 95%)
Send a synthetic email — use a canary send to a controlled inbox every 5–15 minutes; alert if the canary doesn't arrive within a time threshold
Use Statusfield — receive instant alerts when SendGrid's status page reports degradation before your users notice

What to Do During a SendGrid Outage

Immediate steps:

Confirm the scope — check status.sendgrid.com and Statusfield; identify which components and regions are affected
Stop non-critical sends — pause marketing campaigns and bulk sends to avoid hammering a degraded API and wasting send credits
Enable retry logic for transactional email — ensure your application has exponential backoff for 5xx errors with a max retry window
Queue critical emails locally — if your app doesn't already queue emails, temporarily write failed sends to a database table for replay
Notify affected users proactively (for extended outages) — if password resets or order confirmations are affected, communicate via banner or social media

Fallback options:

Twilio SendGrid alternatives: Amazon SES, Mailgun, Postmark — have API credentials and basic configuration ready before you need them
Gmail SMTP fallback: For low-volume critical emails (password resets), a temporary Gmail SMTP relay can bridge a short outage
In-app notifications: For auth flows, consider allowing email-less verification (magic link from in-app, SMS, or OAuth) temporarily

Historical SendGrid Reliability

SendGrid processes high volumes of email and has had periodic outages:

API-layer incidents typically last 30 minutes to 2 hours
Delivery delays can persist longer than API recovery because queued email processes in order
Webhook delivery outages often lag the main recovery by 1–2 hours
The Twilio acquisition (2019) introduced some shared infrastructure; Twilio incidents can correlate with SendGrid issues

Monitor SendGrid Automatically

Statusfield monitors SendGrid's status continuously and sends instant alerts — so you know about degradation before your users report missing emails.