I don’t think it’s rude to do the deletion, but it’s pretty rude to not give some sort of Plan B besides “Wait until I decide I am ready to deal with you.” I’m sure it feels lovely to set up if you’ve usually got a lot of annoying people clamoring for your time on matters that aren’t nearly as urgent as they think, but to not even offer a “in case this is urgent, contact X” fig leaf just shows you don’t care.
You don’t have to inform people why you are out of the office, adds Gugino Panté. “Because of privacy or safety issues, you may not want to state that you are on vacation or at a conference,” she says. “Simply stating that you are out of the office should be sufficient enough.”

With plenty of employees still working remotely months into the pandemic, “I actually think it’s more important now than it was before,” says Muse career coach Angela Smith. “From the perspective of how do we make remote work work,” she says, “overcommunication is one of the hallmarks.” In a world where you can’t see whether your colleagues are at their desks, being clear about when you’re working—and when you’re not—is crucial to keeping things running smoothly.
What we need in our work communication is not more professional politeness or less formal, chat-based messaging applications like Slack. We need honesty. The problem is that we’ve conditioned ourselves to see honesty as self-indulgent or disrespectful. I’d argue the opposite is true. Honesty, even if it’s a bit more inconvenient for all parties in the moment, pays dividends later. It builds trust. When my partner Anne Helen Petersen and I were interviewing people for our forthcoming book on remote work, a frequent lament from both middle managers and workers was that they didn’t feel like they knew how to succeed in their jobs; that they were guessing what their superiors and coworkers wanted and, even when they asked, they didn’t quite trust the responses they got back.