blast
n.— «The company is paying et al Associates, an e-mail marketing company based in Allen, Texas, $7,500 for a 90-day spam blast that will deliver 10 million e-mails to people who have opted to receive information about health and nutrition products.» —“Spam’s Sleaze Factor Forces Firms to Rethink E-Mail Marketing” by Stacy Forster in New York City Dow Jones Business News May 21, 2003. (source: Double-Tongued Dictionary)