Greene, who assumed control of first team affairs in March 2013, oversaw three hugely successful full campaigns at the United helm, culminating in missing out on the play-offs on the final day of the first season and reaching the top five in the subsequent two years.
The club would like to sincerely thank Dennis for his excellent service at The Jakemans Stadium and wish him all the very best for the future.
Martyn Bunce will take interim control of the first team for Tuesday evening’s fixture at Witton Albion.
No further comment will be made at this stage.
Updated 18:57 - 28 Nov 2016 by Craig Singleton