I’m resigning from a job I’ve worked in for ten years but since my first maternity leave, have been treated unfairly since the day I returned. I have a job offer which I’ve accepted and I am not relying on my current line manager for a reference.
My question is, would it be inappropriate to write my real reasons for leaving in my letter of resignation? Feeling undervalued and sidelined from a job I once really enjoyed? Dangerous move or acceptable to be honest?