Hello Chris, > Does anyone know where I can find the dockerfile used to create these images > : > https://hub.docker.com/u/cyrusimapd/ > or who created them? It was Jeroen. Have a look at https://lists.andrew.cmu.edu/pipermail/cyrus-devel/2015-March/003159.html for details.
The docker files are here: https://git.cyrus.foundation/diffusion/ID/ hope this helps, Timotheus