
checked Sep 7, 2026 4:36 PM UTC · Letterhead's official status page
Is Letterhead Having Issues?
No. Letterhead is up and running.
Letterhead is currently operational with all systems functioning normally.
- Last broke
- Aug 14
- Uptime
- 100.00%
- Most impacted
- API
90 day period
All components operational
Service health
Service health, last 90 days
How to read this
The record
90 day period · not affected by the range aboveAvailability counts operational or degraded time as available, averaged equally across all monitored components. Partial outages count as half downtime and major outages count in full, scheduled maintenance is excluded from the calculation, and periods with no recorded status are counted as available rather than assumed down. Each component is tracked independently to give you a clear picture of overall service reliability.
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Recent Letterhead outages & status updates
Latest status changes and service events for Letterhead
| S | M | T | W | T | F | S | |
|---|---|---|---|---|---|---|---|
| Jun 7 | |||||||
| Jun 14 | |||||||
| Jun 21 | |||||||
| Jun 28 | |||||||
| Jul 5 | 1 | ||||||
| Jul 12 | 2 | ||||||
| Jul 19 | 2 | ||||||
| Jul 26 | 1 | ||||||
| Aug 2 | 1 | 1 | 1 | ||||
| Aug 9 | 2 | 1 | |||||
| Aug 16 | |||||||
| Aug 23 | |||||||
| Aug 30 | |||||||
| Sep 6 |
Human Support Chat Latency
Aug 20 · reported by Letterhead · resolved
[Identified] Support Ticketing Slow-down
Aug 17 · reported by Letterhead · resolved
Services experienced degraded performance
Aug 14 · resolved after 1h 35m
Elevated Error Rates with AI Services
Aug 14 · reported by Letterhead · resolved
Monitoring | Dynamic Subject Generation Fallbacks
Aug 11 · reported by Letterhead · resolved
Services experienced degraded performance
Aug 10 · resolved after 1h 2m
Dynamic Subject Generation Issues
Aug 10 · reported by Letterhead · resolved
Applications experienced degraded performance
Aug 10 · resolved after 1h 3m
Letterhead active components
All components for Letterhead available for monitoring
34 components tracked
Incidents · 90dStatus- Letterhead API status2 incidentsOperational
- Curations APIno incidentsOperational
- Marketing API2 incidentsOperational
- Letterhead Applications status6 incidentsOperational
- Agentsno incidentsOperational
- Archivesno incidentsOperational
- Audienceno incidentsOperational
- Composer1 incidentOperational
- Curations Dashboardno incidentsOperational
- Dashboards1 incidentOperational
What is Letterhead?
Letterhead is an email management and collaboration platform that helps teams organize, track, and respond to customer communications efficiently. It streamlines email workflows with shared inboxes, templates, and integration capabilities.
More Communication services
Frequently asked questions about Letterhead
Common questions about monitoring Letterhead and understanding service status

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