describe INVITATIONFROM Invitation from Spammer
score INVITATIONFROM 5
+header INVITESYOU subject =~ /^[\w\s]+invites\s+you\s+to[\w\s]+$/i
+describe INVITESYOU Invites me with spam
+score INVITESYOU 5
+
# blarson 2008-04-28
header RERE subject =~ /^Re\:\s+Re\:\s+/i
describe RERE Re: Re: