Hi,
I can't see if there are any pores ... or is this a wrinkled surface?
There are sometimes red spots on mushrooms, which are said to be caused by bacterial infestation.
I think we can rule out
Physisporinus sanguinolentus, as the colour of the spots is different (?).
I had a look into "Fungi of Temperate Europe" and stopped at
Ceriporia (which of course has distinct pores). “The taxonomy of the genus is in a state of flux and species determination is difficult.”
Ceriporia purpurea is said to occur only on hardwood and form quite small fruiting bodies, similar to
Ceriporia bresadolae on coniferous wood.
Ceriporia tarda is said to be similar, but with very large fruiting bodies on both wood from deciduous trees and coniferous wood. In the book, C. tarda is referred to as the old name for Meruliopsis violacea. But that has probably changed again in the meantime. According to Mycobank, Ceriporia tarda is a valid name (and that is the only one I can find pictures of).
(In Mycobank, Meruliopsis violacea is said to be the same as Merulius violaceus; pictures are misleading here).
These are just examples ... I have no idea whether all of this has been verified microscopically.
The colours appear to be a paler pinkish-red and in most pictures less spot-like.
https://www.inaturalist.org/taxa/381558 ... wse_photos