Pifferi, Augusto, Andrea Lora, Giuseppe Nantista, and Luca Ianniello. “Setup of a Clustered Antispam and Antivirus Service Based on Mailcleaner® Suite”. SMART eLAB 3 (March 4, 2013): 17–21. Accessed January 15, 2025. https://calliope.cnr.it/index.php/smartelab/article/view/24.