PCM can provide a spam filtering service that works with virtually any email server product or hosting service provider. PCM works with SMTP proxy, effectively isolating your email server from the internet. PCM allows a system to accept email form the internet, filters based on known spam signatures, checks for viruses, worms and phishing attempts, then passes "scrubbed" email to your server. If you maintain your own mail servers, PCM can significantly reduce processing and bandwidth demands by providing you with a clean mail stream. Even if you purchase email hosting from an email service provider PCM can very likely eliminate your spam problem.