A couple of years ago, I experimented with not even maintaining an email address for a bit. It's great to be in that position if your job enables you to do so:

A couple of years ago, I experimented with not even maintaining an email address for a bit. It's great to be in that position if your job enables you to do so: communication then occurs using live channels such as telephone, Skype, etc., or using a forum. I'd add Slack to that list if I were to do it again nowadays. The next best thing is to make your contacts prefer to not use email. At one point, I went as far as setting up an auto-reply that went something like: "Note: I do emails once per day between 5 and 6pm. Please prefer Skype or telephone if your communication needs a timely reply or is longer than a few short sentences." It sets the expectation that responses will be slow and that long emails basically won't be read.