I recently failed to get an internal promotion. My boss said it was due to one issue with my work which he (helpfully) had never raised before. I’m keen to get a promotion, so have spent the last month working on this issue and feel I’ve made great strides towards resolving it. However, my boss is not the sort who organises feedback or progress meetings so there’s no way of letting him know this (other than hoping he just happens to notice, which is unlikely).
Since I know he won’t be proactive, would it be unreasonable to email him out of the blue with a summary of how I addressed the problem he raised and positive feedback I’ve had for my work? Or does it look too pushy?