What I'm getting ready to send.

Dear Mark:

Thank you for the opportunity to work at Gotham. I have learned a lot during my time here. I truly appreciate your guidance during my time employed.

However, the time has come for me to move on. This letter is to formally announce my resignation from Gotham, starting today. My last day will be 9/10.

This is not in response to our recent meeting. I will do all that I can to make my final time here a productive experience and a smooth transition.

Regards,
than my name and a small prayer that I'm making the better choice. (gulp)