Fixed: An error was shown when trying to send files. The issue has been identified and fixed; emails should be sent as usual now.
Emails that failed to be sent due to the issue will have to be manually sent again. Emails sent by automatic processes (as part of an automation, or timed email reminders) were not affected by this issue.

Identified: We've identified the issue preventing users from sending emails to clients, and we are working on a fix. Estimated to be fixed within minutes.

Investigating: We are aware of an issue preventing users from sending emails. Further details will be provided soon.