Email routed to Manager

One of my college-mates is getting married and he decided to give us a party. So, he started an email thread and asked our suggestions. As usual, the thread was getting diverted from the discussion and my friends started fighting.

(Un)fortunately, I was also in the list and he being a hostelite, was in touch with a lot of friends in all the departments. I being a day-scholar, have seen most of them in hostels (when we bunk classes) but never interacted with them.

There were a lot of responses and one day there was a reply from Anuj. I wondered as to which department this guy belonged to. After opening the mail, from his signature, I came to know that he was a Project Manager in my friend's company. (Please click the above image and read the email. For privacy concerns, I have obscured a major portion.) 

From his email, I came to know that my friend had resigned a few months back and all the emails to his ID were routed to this Project Manager. Though the manager had requested us to remove the Email ID from the Emailing List, I was worried as to how many official/personal emails would have Anuj read.

If a person had resigned, the mails addressed to him would bounce back saying: The recipient's e-mail address was not found in the recipient's e-mail system. But, this was a very strange experience and this practice of automatically forwarding the emails to the managers is unethical and an intrusion to one's privacy. It's better to disclose such policies well in advance to the employees.

From this incident it’s clear that if you resign, do inform your friends about the job change and ask them to update their Address book. Also, don’t give your office email ID to the banks and other official purposes.