Perhaps on account of all the spam coming out of yahoo?
On Tue, 12 Nov 2013, Chris Santerre wrote:
98.136.218.139 Host Name: nm12-vm10.bullet.mail.gq1.yahoo.com Listed on: Sorbs, Spamcop, and Lashback Causing lots of FPs Thanks, Chris Santerre SysAdmin and Spamfighter
