All Systems Operational

Uptime over the past 90 days. View historical uptime.
API Operational
Curations API Operational
Marketing API Operational
Applications Operational
Agents Operational
Archives Operational
Audience Operational
Composer Operational
Curations Dashboard Operational
Dashboards Operational
Newsletters Operational
Polls Operational
Promotions Operational
Letterhead for Chrome Operational
Delivery Operational
Outbound Email Deliverability (Shared Pools) Operational
Outbound Email Deliverability (Dedicated Pools) Operational
Integrations Operational
Mailchimp Operational
WordPress Operational
Google Docs Integration Operational
Services Operational
AI Operational
Authorization Operational
Automation Operational
Curation Operational
Customer Support and Ticketing Operational
Documentation Operational
Email Service Provider Operational
Link Resolution and Enrichment Operational
Metrics Operational
Notifications Operational
Transactional Emails Operational
Webhooks Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

No incidents or maintenance related to this downtime.

Sep 15, 2026

AI - Elevated Error Rates
Resolved - This incident has been resolved.
Sep 15, 11:22 EDT
Monitoring - Hey, good news. This has resolved within just 120 seconds. We're going to continue to monitor for a while longer, but all should be well.
Sep 15, 11:22 EDT
Investigating - We are seeing an increase in error rates with some of our AI services, which we are currently investigating. Thank you for your patience.
Sep 15, 11:21 EDT

Sep 14, 2026

Sidebar Navigation Issues
Resolved - This incident has been resolved.
Sep 14, 18:43 EDT
Identified - We've identified and already deployed a patch to address some issues with the sidebar menu in the main application, which is navigating people to pages that don't exist (a bad string interpolation). This ought to be addressed shortly.
Sep 14, 18:31 EDT
Shared Slack Channels
Resolved - This incident has been resolved.
Sep 14, 14:22 EDT
Update - Most of our support channels in Slack have been reconnected, but there are still a few holdouts, so we are going to keep this status posted as a wayfinder for those affected users. Thanks for your understanding.
Sep 13, 19:07 EDT
Monitoring - Some of our shared Slack channels were disconnected as part of our upgrading to a higher tier, and while some were automatically reconnected, others weren't. For those, we are in the process of reconnecting. In the meantime, as you need anything, reach out through our support chat or at support@tryletterhead.com.
Sep 13, 08:37 EDT

Sep 13, 2026

Sep 12, 2026

No incidents reported.

Sep 11, 2026

Agents - Elevated Issue Rates
Resolved - This incident has been resolved.
Sep 11, 12:54 EDT
Monitoring - The issue rate has declined precipitously. We'll monitor for a bit.
Sep 11, 12:27 EDT
Identified - We are seeing an elevated number of issues with agents and some of the affordances they power, such as subject generation.
Sep 11, 11:40 EDT

Sep 10, 2026

No incidents reported.

Sep 9, 2026

No incidents reported.

Sep 8, 2026

No incidents reported.

Sep 7, 2026

No incidents reported.

Sep 6, 2026

No incidents reported.

Sep 5, 2026

No incidents reported.

Sep 4, 2026

No incidents reported.

Sep 3, 2026

No incidents reported.

Sep 2, 2026

No incidents reported.

Sep 1, 2026

No incidents reported.

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