text: Leaked memos link spammers to ISP Savvis Internal e-mail messages from Savvis Communications Corp. have surfaced on the Internet that show that the St. Louis-based ISP (Internet service provider) catered to online e-mail marketing companies it suspected of sending out unsolicited commercial ("spam") e-mail, even using "subversive business methods" to help spammers stay online after their Internet address was blacklisted.