MailWasher Enterprise Server is the perfect anti spam compliment to Imail. Working as a proxy, MailWasher Enterprise Server sits in front of Imail and filters unwanted spam email before it gets to Imail, and thus reduces the email load that Imail has to deal with

Setting up MailWasher is easy, with the 5 step setup wizard and detailed instructions for each microsoft version. You should have it set up and running in about 10 minutes.

Most of the spam filtering done by MailWasher Enterprise Server is automatic, and it will start filtering spam instantly after you've set it up.

Filters capabilities are extensive.

• Whitelist - email and domains with the use wilrdcards, IP Address Whitelist, custom filters using plain text and regular expressions, trusted IP's.
  
• Blacklist - email and domains with the ability to use wildcards, IP Address Blacklist, custom filters using plain text and regualr expressions, RBL's (both URL and IP address).
  
• Grey listing with SPF support.
  
• Bayesian learning filters with user spam reporting.
  
• Spam signature based matching of known spam (First Alert).
  
  

Additionally, MailWasher Enterprise Server has all the features you'd expect

• Digest reports of blocked spam so your users can rescue any blocked emails.
• User login to rescue emails.
• Tracking and logging of incoming emails and reports.

Mailwasher Enterprise Server is affordable and uses a low amount of resource (although it will use more if you give it more). Download your 30 day free trial today for Microsoft Windows (or Linux) here.