I will soon be resigning from my position at a company I’ve been with for 5 years. In the past, I have seen some (not all) employees who resigned from the company immediately get escorted out the building or be asked by HR/management not to share the news of their separation with any other employees. One of my previous colleagues with whom I was friendly resigned a few months ago and I only heard about her departure after she was gone. I have since tried to text and call her to wish her luck at her new job and let her know I’m here if she needs me, but never heard from her again (we were friends). I’ve developed close relationships with many of my coworkers over the years and cannot imagine just leaving and not letting them know that A) I wasn’t fired. I’m leaving on my own will; and B) I am grateful for my time spent with them and hope to stay in touch.
I’m trying to get ahead of this before I officially resign. My plan is to email my letter of resignation and 2 weeks’ notice to my boss and HR, and then a few hours later email my close colleagues to tell them I will be resigning. I worry that if I don’t tell my coworkers the news right away (and they hear from me) that HR/management will make me sign something that says I cannot let other employees know I am leaving for another job. Can they do this? Is this advisable?