Might also be worth checking the IPs see if they are listed in Spamhaus block list. If they are, then pretty good bet its organized spam. http://www.spamhaus.o

Might also be worth checking the IPs see if they are listed in Spamhaus block list. If they are, then pretty good bet its organized spam. http://www.spamhaus.org/sbl/ http://www.spamhaus.org/sbl/