For me, Slack has fully replaced email for any time sensitive communication. Email still exists but only for the following: - Company or department wide announ

For me, Slack has fully replaced email for any time sensitive communication. Email still exists but only for the following: - Company or department wide announcements - Welcoming new hires - Artifacts from build systems and automated tools - Inter-team communications when planning something new Anything with a real deadline is communicated through slack or skype.