Yahoo has been having internal problems with a recent change to their spam filter. It's randomly [*] reporting IP addresses as being listed on the Spamhaus blocklist (when those IPs are not listed), and therefore incorrectly rejecting mail in unpredictable ways. This has been going on for almost two weeks; they've claimed a couple of times to have fixed it, but each time it has come back soon thereafter. [*] Or so it appears from outside. 2009/6/2 mcclnx mcc <mcclnx at yahoo.com.tw>: > > > I have been a while did NOT received E-MAIL from "centos" listserv. Any problem on CENTOS listserv?