I suggest sysadmins null route the IP blocks advertised by servers.com as they let spammers run on their network. Here is the result of a recent spam complaint against them:
Hello,
Thank you for contacting us! This is an automated message to let you know we've received your request. We assure you that we investigate each and every abuse report we receive, and will take the appropriate action. To provide us with more details and updates, please include the ticket ID in the subject line. We take your request very seriously and will perform a thorough investigation, which can take up to 48 hours, to ensure issues are properly resolved.
Ticket details:
Ticket ID: [tt #3233579]
Subject: [SpamCop (213.196.39.146) id:6818358810]Tradebay offers preterhuman.net to partner up and ..
Status: new
Kind regards,
Servers.com Abuse Team
Hello,
As our customer informed us, this wasn't spam but their direct marketing offer.
Regards,
Servers.com - Abuse
Servers.com is a joke.