Site issue, 16 June 2018: Proofpoint Email Protection is intermittently refusing to deliver mail from Many sites contract with Proofpoint, including AT&T, IBM, University of Illinois, and Stanford University. sends valid email, but Proofpoint uses “machine learning,” so this problem is likely to recur. We will work on a fix, but in the meantime Proofpoint customers, such as university IT departments, can manually whitelist’s IP address,, in Proofpoint’s so-called Dynamic Reputation service.
Name Affiliation
Alessandro Orso Georgia Institute of Technology
Anders Møller PC, sysadmin Aarhus University
Andrea Arcuri Westerdals Oslo ACT, and the University of Luxembourg
Andreas Zeller CISPA / Saarland University
Cindy Rubio-Gonzalez University of California, Davis
Corina Pasareanu Carnegie Mellon University and NASA Ames
Cristian Cadar Imperial College London
Earl Barr University College London
Eric Bodden chair Heinz Nixdorf Institute at Paderborn University & Fraunhofer IEM
Frank Tip Northeastern University
Gregg Rothermel University of Nebraska - Lincoln
Jacques Klein University of Luxembourg
Jingling Xue UNSW Sydney, Australia
Julian Dolby IBM Thomas J. Watson Research Center
Karim Ali University of Alberta
Katie Stolee North Carolina State University
Lionel Briand SnT Centre, University of Luxembourg
Martin Johns SAP SE
Mauro Baluda Avaloq Evolution AG
Moonzoo Kim KAIST
Omer Tripp Google Inc.
Paolo Tonella Fondazione Bruno Kessler, Trento, Italy
Sarfraz Khurshid University of Texas at Austin
Sasa Misailovic University of Illinois at Urbana-Champaign
Tevfik Bultan University of California, Santa Barbara
Thomas Zimmermann Microsoft Research
Willem Visser Stellenbosch University
Yang Liu Nanyang Technological University
Yannis Smaragdakis University of Athens