In my experience, workers send emails late at night to explicitly demonstrate that they work more than others. I believe that it's unhealthy and it's pretty cle

In my experience, workers send emails late at night to explicitly demonstrate that they work more than others. I believe that it's unhealthy and it's pretty clear that it's not correlated to work quality. This may be due to any number of reasons – from proving false a manager claiming that they don't work to impostor syndrome to office politics to actually compensating that they don't really work – but that's probably something you want to address directly with the mate. That's also a reason for which a number of places/teams I've worked at/with tend to normalize reports to once per day or once per week. That and the fact that managers just can't cope with twenty reports per night. You also want to address the issue with the manager and make sure that you are not judged by number of emails but rather by actual impact. If that fails, you're probably working in the wrong place. P.S.: When I write "in my experience", I've been the "worker who sends emails at all hours of night", in my case because of an abusive manager and an ongoing burnout.