Mackay has accepted an invitation to become an honorary life member of the Supporters' Trust.
In a letter accepting the Trust's offer, Mackay wrote: "It was an absolute pleasure to receive your letter. I was touched by its kindness and really appreciate the sentiment.
"I absolutely loved my job and loved living in Cardiff. In truth I'm gutted that I'm not still there.
"As far as the Cardiff fans are concerned, my memory will live long of their passion , commitment and welcome that myself and my staff were given in our time at the club. It would be an honour to be made a life member and, of course, I would accept such a thing.
"I thought you spoke with passion, thoughtfulness and clarity at the meeting in the board room. Please don't give up on trying to do the right things for the club. Once again, Tim thanks for the memories and the support. I wish you the very best of luck and health."
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