Outage in Intellistack

Formstack Forms: Confirmation Email Delivery Issues

Resolved Minor

August 17, 2026 - Started 9 days ago - Lasted about 1 hour
Official incident page

Incident Report

We are currently investigating an issue where some customers may receive unexpected account deactivation notifications related to bounced confirmation emails. Our team is actively working to identify the cause. We will provide additional updates as more information becomes available.

Components affected

Intellistack Email System (SendGrid)

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Latest Updates ( sorted recent to last )

RESOLVED 9 days ago - at 08/17/2026 01:04PM

This issue has been resolved. Confirmation emails to Microsoft-hosted email addresses are now being delivered as expected.

MONITORING 9 days ago - at 08/17/2026 12:21PM

The issue affecting confirmation email delivery to Microsoft-hosted email addresses has been resolved. Confirmation emails should now be delivered as expected moving forward.

We will continue to monitor for any additional issues.

INVESTIGATING 9 days ago - at 08/17/2026 11:57AM

We are currently investigating an issue where some customers may receive unexpected account deactivation notifications related to bounced confirmation emails.

Our team is actively working to identify the cause. We will provide additional updates as more information becomes available.

Latest Intellistack outages

Confirmation Emails - about 22 hours ago

Formstack Forms: Application Unavailable - 12 days ago

Microsoft 365 Service Issue Impacting Formstack Documents Email Delivery - 12 days ago

Forms for Salesforce: Form Migration Issues Affecting Large Forms - about 1 month ago

Formstack Documents: Users Unable to Access Document Builder - about 2 months ago

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