"I would like to thank you and your team as well as DSML for the very professional, but also very enjoyable process to get to this point."
"I would like to extend my sincere appreciation for all the time you took to make sure I understand the details about this exciting position and company. I am looking forward to being in touch in the future for feedback. This just shows again that your company is truly exceptional!"
"I just wanted to send a brief email, expressing my appreciation for your support with this opportunity. Your communication, counsel and professionalism is truly in a class of its own."