Courier SLA
99.9% uptime guarantee (Enterprise (custom contracts) plan only)
Official SLA Commitment
Applies to
Enterprise (custom contracts) plan only
Scope
Courier platform API availability for Enterprise customers (US and EU regions)
Measurement
Monthly uptime; EU datacenter docs reference 99.9% uptime guarantee for EU region services
Exclusions
Not publicly specified for Enterprise SLA; standard Terms of Service exclude scheduled maintenance and third-party provider outages from any implied availability calculation
Not covered
Developer (free) and Business (pay-as-you-go) tiers; downstream delivery provider availability (SendGrid, Twilio, etc.); message deliverability to end recipients
Promised vs Measured
SLA Promise
99.9%
≤ 43m downtime/month
Measured (30d)
100.00%
≈ < 1m downtime this month
Verdict
Meeting SLA
24h Uptime
100.00%
7d Uptime
100.00%
30d Uptime
100.00%
Pricing & SLA by Tier
| Plan | SLA Guarantee | Price | Meeting 30d? |
|---|---|---|---|
| Developer | No uptime SLA | $0 (10,000 sends/mo) | — |
| Business | No uptime SLA | $0.005/send | — |
| Enterprise | 99.9% | Custom (volume pricing; contact sales) |
Source: courier.com/pricing
SLA Credit Policy
Courier does not publish a public service-credit schedule. Enterprise SLA terms and remedies are negotiated in the Enterprise agreement (MSA/DPA).
Industry SLA Tier Compliance
| Tier | Downtime Budget/Month | 24h | 7d | 30d |
|---|---|---|---|---|
| 99.9%(three nines)Courier's SLA | 43m 12s | |||
| 99.95% | 21m 36s | |||
| 99.99%(four nines) | 4m 19s | |||
| 99.999%(five nines) | 26s |
Equivalent Downtime
Last 24 hours
< 1m
Last 7 days
< 1m
Last 30 days
< 1m
Incident Summary (90 days)
Total Incidents
2
Active Now
0
Resolved
2
Avg. Resolution
26m
Courier SLA: What You Need to Know
Courier guarantees 99.9% uptime measured as courier platform api availability for enterprise customers (us and eu regions). This commitment applies exclusively to Enterprise (custom contracts) plan customers — other tiers have no contractual uptime guarantee.
Based on DevHelm's continuous monitoring, Courier currently shows a 30-day measured uptime of 100.00%. This meets their published SLA commitment of 99.9%.
What's Covered (and What Isn't)
Courier's SLA specifically covers courier platform api availability for enterprise customers (us and eu regions). It explicitly excludes: Developer (free) and Business (pay-as-you-go) tiers; downstream delivery provider availability (SendGrid, Twilio, etc.); message deliverability to end recipients. This means outages in excluded components don't count toward SLA credits.
Impact on Your Application
At 100.00% uptime, you can expect approximately < 1m of cumulative downtime per year from Courier alone. If your application depends on additional services, their independent failure probabilities compound — making dependency monitoring essential for maintaining your own SLA commitments.
Monitoring Methodology
DevHelm tracks Courier's official status page continuously and aggregates component-level status data into uptime percentages. Data is refreshed every 5 minutes. Uptime is calculated as the percentage of time all components report operational status.
