One of the hardest part of leaving your job is saying goodbye to your coworkers. Writing a farewell letter is a way to that you can say goodbye, thank them, and open up an opportunity to stay connected to them.
If the letter is being sent as a hard copy, then it should be in the proper business format, otherwise, if the letter is being emailed, it should have an appropriate subject line and proper grammar.
It is with regret that I write this letter to inform you of my decision to resign from [Company Name] effective [Month Day, Year].
It has been a pleasure working with all of you as we navigated both the good times and the more challenging times. I especially appreciate all the people who took the time to answer my questions, explain corporate policies and procedures, and train me to perform new assignments.
Although I am excited at the prospect of moving on to a new job with new responsibilities, I doubt very much that I will ever find another team as caring and cohesive as this one.
I extend my best wishes to all of you and to the [Company Name]. If you wish to stay in touch with me, you can reach me at my personal e-mail at [E-mail Address]