> Nothing with clear "within a day" expectations. Email used to be that way, until too many peed in that pool. Slack, then Mattermost, solved that for us. Our

> Nothing with clear "within a day" expectations. Email used to be that way, until too many peed in that pool. Slack, then Mattermost, solved that for us. Our email inboxes became crowded with banter, notifications, as well as info that should be tracked in a centralised place. It was a mess because email became a kitchen sink. So now we use GitLab for most of the serious "this better be tracked" stuff, Mattermost both for the off- and on-topic live chat, and email takes back its natural place when interacting with third parties (those we didn't onboard on GitLab), reply-soon-enough, and notifications (including GitLab ones, which thus covers "reply-soon-enough+should-be-tracked" in a seamless way). The key point is having the three tools together, personally configured as each user sees fit WRT notifications, allows for each tool to blend with each other over the gradient of possible use cases.