In the responses to this thread, many users started to blame the IT admin who automatically put our IP address to the blocklist.
Please note that we don't want to blame a single party. Reporting spam and reacting to abuse reports is a good thing.
However, we are concerned about the fact that automation based on accusations from single parties escalates to regular headache for network operators.
This is also far from the utopy of an Internet, where everyone can easily host their own services.