Support for HTML File Attachments in Gainsight Emails and Timeline

Hi Gainsight Community,

We’re looking for clarification on support for HTML file attachments in Gainsight emails.

Our CSMs use Databricks to send client extract files via email, and in some cases those files are HTML files. While the emails are being sent, the HTML attachments are not surfacing in Gainsight and are also not logged on the Timeline activity as attachments.

We’d like to understand:

• Are HTML files currently unsupported as email or Timeline attachments in Gainsight?
• Is this expected behavior due to file type/security restrictions?
• Is there any roadmap plan to add support for HTML files as a supported attachment type in emails and Timeline logging?

This would be very helpful for our team, since we want client-facing extract files sent by CSMs to be fully visible and trackable within Gainsight.

Any guidance or product insight would be appreciated. Thanks!