The automated dispensers (sing.:mlekomat; plur.:mlekomaty) are distributing fresh milk (non-UHT) but, this is not raw milk. This is “standard” pasteurized and homogenized milk.
However, it is true that one can buy raw milk from traditional (small) farms. Note that Poland is a member of European Union and follows EU norms that largely have banned distribution of raw milk and raw milk products. Therefore, farmers selling raw milk do so against the law. This does not mean that raw milk from these sources is unsafe. The distribution is simply unregulated and unofficial.
Remember that not that long ago, all milk in Poland was raw. Pasteurized milk has been introduced earlier in big cities where large scale diary transformation facilities existed. Grocery/Diary shops in small towns where the milk travelled from local farms to diary facilities daily, kept selling raw milk far into the late communist era. Refrigeration was not always available for milk. Fresh raw milk was sold daily and what was not sold the same day would become soured. This soured milk would be sold the next day or two, depending on season – summer months meant the milk would turn sour faster and would be good or acceptable for consumption for shorter time.
All this was lost when modernity came to Poland and centralization of the distribution of milk (big diaries took over making small diary transformation facilities disappear) as well as pasteurization and refrigeration came during 1980’s. The pasteurized and homogenized became standard everywhere in Poland. However, this was still lost to even worse practices – the proliferation of milk UHT. The fresh milk, although still available, is by far less accessible that UHT milk. The farther from big city centres the more UHT becomes the only milk available.