There is no "they" - academic research labs are funded by their own grants, and are pretty close to being separate companies that just rent space from the university. BOINC is funded by donations and grants from the NSF and NASA.
Academic administration that makes decisions about things like e-mail account policies is an entirely different thing from research labs doing projects like BOINC, ultimately controlled by the state government- although it can and does choose to delegate some responsibilities to academic faculty.
Academic administration that makes decisions about things like e-mail account policies is an entirely different thing from research labs doing projects like BOINC, ultimately controlled by the state government- although it can and does choose to delegate some responsibilities to academic faculty.