I want to let you know that your site gets a reputation of -7.1 on a scale ranging from -10 to 10 on senderbase.org. This is bad because my silly university bl

I want to let you know that your site gets a reputation of -7.1 on a scale ranging from -10 to 10 on senderbase.org. This is bad because my silly university blocks all websites with a reputation of less than -6, thus I was only able to see it through a proxy. Note: I tried to get useful actual facts on why it is badly rated but I did not succeed.