The only manual change I made was to add the ordinal scale coloring by top-level domain. If even Gmail considered it spam, it didn't go here.
* The letter from andrew.cmu.edu is about a local event by Emory U, Case Western Reserve U, Carnegie Mellon U, New York U and the U of Rochester.
** Two of the emails from rice.edu are about a local event by Cornell, Rice, UChicago and Vanderbilt.
† Some colleges sent from two domains. Notably, if you combine Loyola's two bars, it takes second place by a thin margin. I marked these manually and may have missed some though.
‡ Not from a college or specific colleges, but related to the topic.