Notification emails always arrive

The emails and Slack messages that tell your team about a new request, new feedback or a new comment now always go out. Until now a small share of them could be lost. The message was handed off right as the page finished loading, and once in a while the send was cut short before it reached the mail service. Nothing showed on your side, and the request or comment itself was saved fine. Only the notification went missing. The send now finishes in the background after the page has loaded, so the notification goes out every time.