Last updated: March 5, 2026
This SLA is incorporated into the Terms of Service. It applies to Pro and Scale plans.
Email infrastructure has two distinct reliability dimensions. We measure and commit to both.
99.5%
Monthly availability of the Truncus API endpoint, measured as the percentage of minutes returning non-5xx responses. Scheduled maintenance windows (24h notice via status page) are excluded.
95% in 60s
95% of emails accepted by the API (202 response) will reach their first delivery attempt within 60 seconds. Measured monthly across all accepted sends.
Important distinction: Delivery to the recipient's inbox is not guaranteed by this SLA. Once an email leaves our infrastructure, delivery depends on the recipient mail server, spam filters, and network conditions — all outside our control. We commit to accepting your email and attempting delivery promptly.
| Monthly Uptime | Credit |
|---|---|
| 99.0% – 99.5% | 10% of monthly fee |
| 95.0% – 99.0% | 25% of monthly fee |
| Below 95.0% | 50% of monthly fee |
If the 60-second delivery rate drops below 90% in a calendar month, a 10% credit is automatically applied to your next invoice. No claim required.
Email support@truncus.co within 30 days of the incident. Include:
SLA credits do not apply when downtime or delivery failures are caused by:
System Status
Real-time uptime and incident history