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IP BASED FILTERING AND SPAM ASSASSIN - SPAM PROTECTION

We offer Spam Assassin as well as an IP based anti-spam service as it provides one of the best overall anti-spam services available today. We also run the outgoing smtp port as 587 and not port 20 that allows all our clients to work with the same settings in countries outside Singapore when they travel. For example port 20 does not work in Malaysia but many hosting providers still use it for Singapore clients.

CORE FEATURES:

Wide-spectrum: - SpamAssassin uses a wide variety of local and network tests to identify spam signatures. This makes it harder for spammers to identify one aspect which they can craft their messages to work around.
IP Based Filtering: - We also provide an IP-Based anti-spam filtering that runs checks against black-listed IP addresses of professional spammers. This is highly effective as the vast bulk of global spam comes from a small group of professional spam operators and using IP filters we can block large amounts of confirmed spam, regardless of what techniques the operator uses to disguise the spam.
Easy to extend: - Anti-spam tests and configuration are stored in plain text, making it easy to configure and add new rules.
Flexible: - SpamAssassin encapsulates its logic in a well-designed, abstract API so it can be integrated anywhere in the email stream. The Mail::SpamAssassin classes can be used on a wide variety of email systems including procmail, sendmail, Postfix, qmail, and many others.
Easy Configuration: - SpamAssassin requires very little configuration; you do not need to continually update it with details of your mail accounts, mailing list memberships, etc. Once classified, site and user-specific policies can then be applied against spam. Policies can be applied on both mail servers and later using the user's own mail user-agent application.